Sure, ideally bystanders and local businesses (in particular) would be spared. But nothing about the historical events leading to now is ideal.
But history can be important. Literally everything that's known and has been done is now history, including recently committed crimes.
The history that we're talking about still has clearly identifiable painful consequences in present-day communities, so it's not something that can just be filed away and ignored as no longer relevant.
Many of the immigrants who have created new businesses in the US have experienced terrible histories themselves, but they have been able to put these behind them, because their antagonists are not in the US.
I don't think historic injustices should be simply ignored, but the problem is even more severe when the systemic abuses your community is experiencing is not only in the past, not only occurring in the moment, but there is realistic prospect that conditions will to improve.
Private companies militarizing police forces never face liability, and sworn, armed officers belong to unions, and neither of those seems on a course to changing.
It is a completely untenable situation for American citizens to be extra-judiciously killed by government employees. Rioting doesn't help, peaceful protests don't help, you can't even respectfully kneel during the national anthem without being treated as though you're rejecting everything about the country. Petitions? Hunger strikes? Self-immolation?