> It's simply a different world view.
One that states that people with more melatonin are fundamentally inferior and should be subservient to people with less melatonin. It is a point of view that is objectively and morally wrong.
I wonder whether you would support the right of people to state that PoC should be sterilized, or the rights of people to call people to attack PoCs. Because that is what more and more people have been calling for in America. That is what Richard Spencer, one of the leaders of the alt-right, advocates.
The problem with these 'different world views' is that even without directly stating that people should attack minorities, these statements lead to people beating up black people on the streets. The more these ideas and 'world views' are accepted, the more acceptable it will become to think and state such things, leading to a resurgence of people who think that PoCs should be murdered. That will then directly impact the probability of someone acting upon those beliefs.
The reason why the rest of the world does have as bad a racism problem as America, is because they took steps to alienate people who had such views.