Well…

Things that count to fascism are:
1. Wanting a dictatorship: Both commies and extreme right wingers want that
2. Nationalism: Way more of a right wing thing than a left wing thing
3. Sympathy for Nazi Germany: I have never seen a single commie who thinks that. Only right wingers.
4. Antisemitism: Again, can happen from both sides
5. Xenophobia: Who are the ones saying „deport all immigrants“? Right wingers or left wingers?
6. Belief in Social Darwinism: Can happen from both sides

When it comes to who can be more fascist, right wing wins 6:3.