No one has had their US citizenship revoked. Some legal permanent residents (not citizens) who have supported terrorist organizations such as Hamas might be deported depending on the outcomes of their court cases. I don't support those actions but let's be clear about what's actually happening.

https://www.npr.org/2025/03/10/nx-s1-5323166/arrest-green-ca...

Generally citizenship can only be revoked from a naturalized US citizen if the government proves some sort of fraud on their application.