I don't think that's the majority opinion here. I think it's more along the lines of "I'm not going to waste my energy being outraged about those incidents when those in power and their supporters aren't outraged about the killing of black and brown people by police."
There's a critical distinction there. Like it just comes off as infuriating when the people who (primarily, not always) post such incidents with the intention of turning around and going "WHERE'S YOUR OUTRAGE, LIBS!?" when they're the same people who, when reacting to the killings of Breonna Taylor, George Floyd, etc. is "Well, they were no angels...", "Well, if they simply complied...", or "It was justified under the law, next."
It's not that people don't think these incidents are bad, it's just they no longer have any fucking patience to play into the one-sided hypocritical game conservatives like to throw at them of "Why aren't you mad about THIS TOO!?!?" that is just to deflect from the issues of systemic and institutional racism in the justice system and change the topic.