Lol. In my neighborhood which is mostly Hispanic and black I have come across some black people that made fun of my accent and also hate Mexicans for some reason. But this is not the majority only a few.
The reverse is true. I have met Hispanics who dislike blacks which just feeds into this hatred cycle that is due to unfortunate past experiences and the lack of understanding (for both sides).
In short anyone can be racist and ignorant. Hopefully they change their racist thoughts but there needs to be patience and communication.
It’s too naive to hope there will be a day that people can genuinely see others as they are and judge them by their actions/intentions and not appearance/beliefs.
Also killing all members of a certain race/ethnicity is something Hitler would do. That’s a weird subreddit.