Black people cannot be "eh" around the sort of guy who says "I hate black people." He might try to kill them.
The kind of people who say they hate black people or women have an extremely well-documented habit of acting on those beliefs.
Most black people who say "I hate white people" don't hate every single white person, they take issue with a collective.
No, you jerks, "racism" didn't chain up black people, put them in cotton fields and whip them, WHITE PEOPLE DID.
"Homophobia" didn't criminalise intimate sexual contact between two consenting adults, STRAIGHT PEOPLE DID.
"Transphobia" didn't make it illegal for trans people to use public bathrooms, CIS PEOPLE DID.
Not to mention that a lot of the justifications that a white person usually makes for "I hate black people" are conditions that white people imposed upon black people.
It's also important to accept that "responsibility" is not the same as "guilt."
Meanwhile, someone talking about "n****rs" is definitely expressing distaste for an identity first and foremost.
Transgender people don't have the luxury of taking time to work out whether someone saying "hahaha, I sexually identify as an attack chopper" is just spouting nonsense or actually attacking the concept of gender identity.
Even insincere homophobes and transphobes will quickly find themselves being flooded with agreement from actual, sincere bigots.
Some white people resent black people merely for existing in the same space as them.
These two things are not remotely comparable.
Firstly, hi, I wrote a thread about that.