In San Francisco? No one I ever met personally said that, but I heard plenty of "chatter" at BBQs where SF police officers were guests.
Where I grew up, in the "East Pacific Northwest", some were violent enough to actually say that out loud. I never knew anyone personally that murdered a black person, but I knew several who got into fights for this reason. These were kids in high school, police officers, elected political officials, etc.
I'm very happy to say I've never personally heard anything like that in a professional setting, but I'm sure it exists and I hope it'd be treated very seriously.
Maybe I spend too much time on discord, but I've met potentially hundreds of people who unironically believe that the value to life of non-white people is very low and that most do not deserve life.
Lots of actual crypto Nazis and fascists are there and they radicalize young and impressionable gamers...
Quite a few. I see prominent people on my own "side" calling for the genocide or isolation of entire states, one of which I'm in, because an election swung the wrong way by a few percent.