Are you ready? Here we go..
Main Entry: among
Etymology: among from Middle English, from Old English on gemonge, from on + gemonge, dative of gemong crowd, from ge- (associative prefix) + -mong (akin to Old English mengan to mix); amongst from Middle English amonges, from among + -es -s — more at CO-, MINGLE
Date: before 12th century
1 : in or through the midst of : surrounded by *hidden among the trees*
2 : in company or association with *living among artists*
3 : by or through the aggregate of *discontent among the poor*
4 : in the number or class of *wittiest among poets* *among other things she was president of her college class*
5 : in shares to each of *divided among the heirs*
6 a : through the reciprocal acts of *quarrel among themselves* b : through the joint action of *made a fortune among themselves*
usage see BETWEEN
Remember the last word, "between", and remember what the original intent is, for having a federal government.
42 U.S. Code § 12181. Definitions
As used in this subchapter:
The term “commerce” means travel, trade, traffic, commerce, transportation, or communication—
(A) among the several States;
(B) between any foreign country or any territory or possession and any State; or
(C) between points in the same State but through another State or foreign country.
(2) Commercial facilities
The term “commercial facilities” means facilities—
(A) that are intended for nonresidential use; and
(B) whose operations will affect commerce.
Such term shall not include railroad locomotives, railroad freight cars, railroad cabooses, railroad cars described in section 12162 of this title or covered under this subchapter, railroad rights-of-way, or facilities that are covered or expressly exempted from coverage under the Fair Housing Act of 1968  (42 U.S.C. 3601 et seq.).
(6) Private entity
The term “private entity” means any entity other than a public entity (as defined in section 12131(1) of this title).
(7) Public accommodation
The following private entities are considered public accommodations for purposes of this subchapter, if the operations of such entities affect commerce—
(A) an inn, hotel, motel, or other place of lodging, except for an establishment located within a building that contains not more than five rooms for rent or hire and that is actually occupied by the proprietor of such establishment as the residence of such proprietor;
(B) a restaurant, bar, or other establishment serving food or drink;
(C) a motion picture house, theater, concert hall, stadium, or other place of exhibition or entertainment;
(D) an auditorium, convention center, lecture hall, or other place of public gathering;
(E) a bakery, grocery store, clothing store, hardware store, shopping center, or other sales or rental establishment;
(F) a laundromat, dry-cleaner, bank, barber shop, beauty shop, travel service, shoe repair service, funeral parlor, gas station, office of an accountant or lawyer, pharmacy, insurance office, professional office of a health care provider, hospital, or other service establishment;
(G) a terminal, depot, or other station used for specified public transportation;
(H) a museum, library, gallery, or other place of public display or collection;
(I) a park, zoo, amusement park, or other place of recreation;
(J) a nursery, elementary, secondary, undergraduate, or postgraduate private school, or other place of education;
(K) a day care center, senior citizen center, homeless shelter, food bank, adoption agency, or other social service center establishment; and
(L) a gymnasium, health spa, bowling alley, golf course, or other place of exercise or recreation.
42 U.S. Code § 12131. Definitions
As used in this subchapter:
(1) Public entity
The term “public entity” means—
(A) any State or local government;
(B) any department, agency, special purpose district, or other instrumentality of a State or States or local government; and
(C) the National Railroad Passenger Corporation, and any commuter authority (as defined in section 24102(4)  of title 49).
So, lets look at that key sentence,
"The following private entities are considered public accommodations for purposes of this subchapter, if the operations of such entities affect commerce—"
Did you catch that last part? If the operations of such entities affect commerce? That is commerce, as defined above. And, between the States. How much commerce, as defined above, occurs between the states, physically? How many businesses physically exist between states? How many brick and mortar establishments exist between the states? More practically speaking, it is the business done by and from one State to another State.
For those that want to talk about transactions that occur across state lines, how many bakers are being asked to bake a cake for gays across state lines? This should highlight the absurdity for these laws even being on the books. They exist purely for constructive fraud. Do you disagree? Show me otherwise..
Any conflicts between private people making exchanges, should be handled by the States individually. If the States had a conflict in the process, then you could imagine the Feds stepping in. And that would be rare. People after all, seek the path of least resistance. They also want to stay in business. They also need suppliers and customers, so there is incentive to cooperate harmoniously, for the benefit of both.
Do you see that none of this applies to the average private company?
Do you see that none of this applies to the average privately owned apartment building, rental property, grocery store, retail business, etc..
Also, if the use of the term public accommodation is used in the building codes that make a builder jump through hoops, they likewise, do not apply. The extra costs in building ramps, heights for switches, sinks, all that crap is based on constructive fraud.
Also note, under the definition of commerce, it does not say anything about flesh and blood human beings, only States.
If the States are engaging in those actions, then it applies.
Remember, the federal government is a subcreation of the States.
The States are a subcreation of the flesh and blood human beings.
The flesh and blood human beings created governments to protect their freedom, liberty, and property, not to parasite off of it, nor to dictate how to use those freedoms, liberties, or properties.
The average business owner wants to do business. If something really bothers a business owner, to the point where s/he refuses service, then it must be important to that owner. The desire to not do business should be respected. Wouldn't you want to be respected? Wouldn't you not want to be forced into service?
The lawsuits that are repeatedly used to punish private businesses for not going along with the social engineering agenda, are based on misinterpretation and/or misrepresentation, by people that should, and probably do, know better. That is malpractice or malevolence.