Is Antifa the new KKK?

I heard this comparison and I started to think about it. I understand Antifa isn’t about race, but they are about ideology. And really, at heart that is what bigotry is…an ideology. But I started thinking about the comparison: both were formed from the Democrats, both were supported by the Democrats, both wore masks to hide their identities, both ganged up on lesser numbers, both used violence to push their beliefs. The similarities are there. Your thoughts?