fascism făsh′ĭz″əm noun A system of government marked by centralization of authority under a dictator, a capitalist economy subject to stringent governmental controls, violent suppression of the opposition, and typically a policy of belligerent nationalism and racism.

There is your proof. It’s in the definition of the term with suppression and racism.

If you don’t want to do your own research and information gathering that’s fine, but I suggest doing so in the future. Knowing exact terms and their meanings in a political conversation is incredibly important.