I'm against unidentified LE of any kind pulling people off the streets into unmarked vehicles because that's getting into Gestapo/secret police territory. I would feel no sympathy for these Feds if they go after the wrong person and get lit up for it. I also won't physically defend these leftists from it because it's a taste of their own medicine. They would be cheering it on if it were anyone else and they made their own beds calling for gun bans all the time.
I'm against protests going from waiving signs and stating their opinions in a public place legaly to blocking thoroughfares and destroying public property; it's getting into bolshevik territory. I feel no sympathy for these criminals getting lit up for it. I'd be cheering it on.