If someone has managed to make it through the whole years long Byzantine bullshit process that is getting a US citizenship, there should be zero ways for that citizenship to be stripped from them. If it turns out they lied to the government in their paperwork, we already have criminal law to prosecute to punish people who lie and commit fraud to the government. And they can be tried in an actual criminal court in front of a jury, convinced and sent to jail... As US Citizens. This bullshit where they can strip citizenship is fascist white supremacist fuckery.