Only this time it wouldn't just be communists. This time it would be a whole slew of different subversives. You might even save a specific group for last.
The only problem is that it would never fly in the current congress, as most of the politicians should also be rounded up as un-American.
You cannot fight these gangs while following the 'rules'. You have to declare war on them. Total war. Announce that anyone living in those buildings will be considered an enemy. Make it known that all enemies found at the location will be neutralized (killed), and that no prisoners will be taken. Nobody will be handed over to ICE, nobody will be jailed and put through the court system. They will be summarily executed on the spot. Sanitize a couple of these buildings in a city, and the gangs will move on to another less aggressive city.
Just a guess, but I expect Kamala to show up on Diddy tapes.