when did the government lock people up for protesting fascism?

literally last night they locked them up.

Who, Rioters or Protesters? What did they do to get locked up?

nothing, no warrants were issued. The Federal agents don't have to identify themselves.

You should pay attention to something other than Right wing news.

https://www.cnn.com/2020/07/18/us/portland-arrests-federal-authorities/index.html

When your right wing invaded a bird sanctuary they got away with it.

TL:DR The Feds have identification on them, Antifa are being assholes and thats why the Feds got called in. The guy being taken away by Feds is probably an informant.

Ah yes CNN , the most unbiased news source there is. Basically you told me to not look at Right wing news while giving me Left wing news. If someone is getting picked up by the Feds , there is a good reason for it. Either they are snitching or they have f**ked up real bad.

Show me more than one incident of the "big bad Federal agents kidnapping the poor innocent Antifa protesters". Otherwise its more than likely an isolated incident. The guy getting "kidnapped" didn't even get restrained with cuffs.
(so maybe a snitch?)

Look , I understand that it seems really spooky and scary. It really isn't. The Feds not only have a patch to show who they are with, but a little handy dandy Badge Number on the same arm as well.

https://nymag.com/intelligencer/2020/07/unidentified-federal-agents-detaining-protesters-in-portland.html (Example of the patch and Badge number)

My meme I posted is pretty much why Feds were put in Portland. Antifa would rather kill innocent officers then protest peaceably.

BTW, im no fan of CNN or Fox, they are both biased and GAY.

if being an asshole and protesting was all it took, your right wing extremists invaded a bird sanctuary, occupied it, pointed weapons at FBI and didn't serve any time - even got their mail.

This is just fascism.