As far as I understand it, both Alex Pretti and Renee Good were not just peacefully protesting, they were obstructing law enforcement [1][2][3]. I'd be happy to be proven wrong about this.
If Google DeepMind employees have their visas in order, don't stalk ICE agents in signal chats, and just go to work like normal they should not have anything to worry about.
[1] https://www.bbc.com/news/videos/cj6wgelw62do
[2] https://www.wlfi.com/news/national/alex-pretti-broke-rib-in-...
[3] https://youtu.be/BM2OBGAWHVo, https://www.cnn.com/2026/01/08/us/video/minnesota-shooting-i...
This seems like a very reasonable way to handle it.
Edit: Disclosure: I'm not an American.