You're lying. This is obviously a white supremacist site. See:

One section is titled “toll paid,” and it lists women who have been in interracial relationships, and had something horrible happen to them, like death or injury.

There is a difference between acknowledging and discussing facts that may be uncomfortable, and using facts selectively as a way to justify hatred and violence. (This isn't a comment either way about the veracity of your research).

Also, the parent post made no mention either way regarding anything you've suggested. "Wondering" about things in this way is a common tactic of bad-faith argument.

is this actually a problem? there are so many people in the world that you can always find cherry picked examples to prove your point. white men commit domestic violence, does that mean no-one should date white men?

In what way is calling a website dedicated to harassing interacial couples white supremacist disingenuous?

Everything is "racebait" nowadays. Racism died in the 20th century and anytime a racist act happens now its "irony" or the victims fault.

Can't tell if you're serious or sarcastic. Delightful.