It's an embarrassment to him because the 'One world Socialist movement' hasn't progressed as far as he would like it, especially in America.

Remember and never forget that Biden was chairman of the CFR (Council on Foreign Relations) If you're not familiar with the CFR, by all means look it up.. but not on Google :-))

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Violating a decades-old tradition of leaving politics at home when addressing foreign nationals, the potential 2020 Democratic presidential candidate spent much of his speech suggesting America had violated its commitment to “human decency” and other cornerstones of democracy. Biden has said that he wishes to restore “civility” and “respect” to American politics. (RELATED: Biden: ‘I Think I’m The Most Qualified To Be President)

“The America I see values basic human decency, not snatching children from their parents or turning our back on refugees at our border. Americans know that’s not right,” Biden asserted. “The American people understand plainly that this makes us an embarrassment. The American people know, overwhelmingly, that it is not right. That it is not who we are.”

Biden said: “While I cannot speak today as an elected government official who is able to set policy, I can speak as a citizen. I can offer insight into my country. I know we’ve heard a lot today about leadership, but in my experience, leadership only exists if somebody — and others — are with you. Leadership in the absence of people who are with you is not leadership.”

While Biden was in the midst of his administration critique, he suggested it was wrong “to disagree with your brothers and sisters in public. Today because of, I think, a lack of leadership coming from the other side of the Atlantic, we find ourselves in a different place, and it’s uncomfortable.”

“I can assure you, that the American people, the ultimate wellspring of power in the United States of America, remain committed to engaging the world with decency and respect.”