ill just say i fundamentally disagree with your premise that the advent racism was in the 1400s.

There were apartheid laws against the britons in britain by the anglo saxons and against the gauls by the franks in france.

Racism has been around long before modern capitalism and we will still need to fight it after capitalism is gone. I feel like its a moral obligation and is also praxis.

i think class trumps everything at the end of the day of course.