Maybe this is something lost in translation but given that you appear to be British, did brits think of Barack Obama as being a bit dishonest for being referred to as the first black US president given that he had a white American mother and a black Kenyan father (as you put it)?
Opposing genocide is always good; anyone who tries to prevent you from or talk you out of opposing genocide is tacitly or explicitly supporting genocide.
Criticizing our leaders for things that they do wrong (like supporting a genocide) is always good; anyone who says otherwise or tries to convince you to not criticize our leaders is anti-democratic.
Biden shouldn’t sacrifice our democracy to actively support a genocide.
It’s back!