Antifa is a subversive anti-American organization which needs to be investigated thoroughly.
Their goal is the overthrow of a legitimately elected President and Pro-American policies.
Yes, but I suspect they are remote-controlled by certain Democrat Party leaders. Just like Obama's #BLM mob - they were out on the streets when Obama/Holder had some political point they wanted to be pushed. Of course, there will be no conclusive, direct evidence that such operations are planned by Democrat leaders, but the Antifa goons can push/pull a media and political narrative and the timing and subsequent media propaganda are always suspicious. It doesn't take but one or two Antifa "leaders" to organize an operation at someone's request.
This is my analysis, but regardless, I highly doubt Antifa is 100% independent.