What is your definition of a racist?

I am asking because it varies a LOT, not just from person to person, but from different eras.

It is a highly philosophical question when it comes down to it.

Back in 2014-2015, you could not express any opinion what was counter to 100% positive toward migration without being called a racist.

I don't want large political policies to be taboo and not being able to be discussed like it was back in 2014/2015.

That is why I protested.