It’s racism in the most direct sense. Suggesting one race in the case white people are inherently worse than all other races.

It’s not discriminatory, but racism is a belief not always an action. https://en.m.wikipedia.org/wiki/Racism

In fact - it isn't racism, according to the link you have provided.

"Racism is the belief in the superiority of one race over another."

Superiority is a key word here. The link actually ends up on the page for supremacism:

"Supremacism is an ideology which holds that a certain class of people is superior to others, and that they should dominate, control, and subjugate others, or are entitled to do so."