STOP colored people to use their color as an alibi for their offenses, violations of legal regulations and norms of acceptable social behavior, as an excuse for their criminal acts, violence, robberies, terrorism, etc.  No one is untouchable, so neither are they.
The fact that Floyd was killed is sad and tragic, but he could have been white and killed in the same way.  Then there would be no demonstrations or protests for sure.  That would make the colored ones happy, it seems to me.  That would be quite acceptable for all non-whites, quite Ok.

The question is also how many whites came out to protest for fear of black revenge tomorrow.
If coloured are against racism, why white people have to be scared of them?

The police officer violated his authority and should be held accountable for that, as well as the members of his patrol group.  And that has nothing to do with the skin color of any of them.  This has to do with the rules of conduct of the police on the ground in such situations.