Are antifa & blm domestic terrorist organizations?

They were trained by the weather underground organization terrorists and haved caused more destruction than their 60s bombing campaign.

antifa isn't an organization, it is a movement... it is as organized as the trump white house.

BLM; no. 

1. Antifa is not an organization.  It is just some random separate people.

2. BLM is a nonviolent organization founded to address and solve police brutality against black people.

I hope this helps you understand things better.

Are sports fans terrorists when their Favorite team loses and they turn cars over and burn couches?

No. 

Grow up

Yes, they're the equivalent of ISIS. They even wear all black like them too.