“It is offensive to compare a black person to a monkey. Period.”
It is offensive for anyone to be compared to a monkey if they’re thin skinned enough to be offended. I don’t see what race has to do with it.
The movie Planet of the Apes had to do with humans blowing up the earth with a nuclear holocaust, and causing a future where they were no longer the dominant species on the planet.
I know that Trump, Obama, Bush Jr. and Gerald Ford have all been compared to apes or monkeys - and there were others I’m sure.
When you compare someone to an ape the implication is that you think they are stupid or low class, lacking in manners, perhaps primative - none of which are insults that apply to one race more than another.
For decades prejudiced people have disgustingly tried to mock them with this sort of comparison. Doing it again was awful and not funny.