If your citizenship is given by Congress...aka naturalized by man made law, then it can be taken away.
Being born here does not make you a citizen. Children born to foreign nationals[legal or illegal] are not U.S. citizens.
Yes, that can be revoked (for cause), and the malefactor deported to country of origin. Advocating violent revolution may well be cause. Back when we had immigration standards, we didn't take communists, anarchists, criminals, or other categories of undesirables. Moslem should be added to that list.
Being born here does not make you a citizen.
Spare me the pettifoggery. Being born here of citizen parents DOES make you a citizen, and that citizenship is NOT given by act of Congress, and it cannot be revoked by act of Congress (or anything else). Be careful what can of worms you open.
The Fourteenth Amendment would disagree with you.