Both the Capitol protest and antifa/BLM riots involved Democrat politicians shirking their sworn duty to provide security and policing.
The 2 people in charge of adding Capitol policing were the House Manager and Nancy Pelosi. Note Pelosi's Jan. 6 committee doesn't want to talk about that - she cherry-picked Republian members who wouldn't demand that.
Trump offered the National Guard to the Democrat cities that were burned, but mayors refused.
The antifa/BLM riots stopped just before the Presidential election, since the Democratic Party knew it was hurting their support.