@UmmH I'm happy to debate, as I'm happy to explain my point.
I'm white, middle class and middle aged. I don't have any black friends or family, and I cannot imagine what it must be like to experience racism once, let alone every day. Apart from the 1980s when I protested against Apartheid alongside everyone else, my exposure to the politics of being a POC is zero.
It doesn't make me a racist; if I saw a black person being abused I would speak up, and the other way round. It just makes me not-black. I can chose to live my life in peaceful ignorance if I choose.
There are millions of people like me. We think what happened to George Floyd was abhorrent and cannot be excused. We also look at looters (of all skin colours) and it turns us 'off'. We stop being interested in the politics of it, we stop wanting to know more, why should we educate ourselves on the problems when we just see yobs using a murder as an excuse to nick some trainers, and people defending them.
The Brooklyn protesters defending the Target store knew the damage to the protest message, as well as the downstream damage to the local economy. If you want people to be 'anti-racist' not just 'not racist' then you need to understand the optics from both sides and try to engage rather than starting from a position of hate and presumption.