How did you know they were Antifa types?
They were wearing T-shirts or hats with various Antifa logos and slogans on them.
I would assess from their appearance that they were "showing the flags". In all other aspects they were quiet, polite, and competent in their practice. It did not seem like a good environment for a conversation...
I haven't seen them around in a while.
I do not wear emblems of any type nor do I have any bumper stickers on my cars. I prefer to go unnoticed in public.
I am perfectly content to have opponents who mark themselves as "target-ready".