Ok, kinda drunk, so bear with me. My (drunk) friend is insisting that marrying someone for money with the intention of getting the other person citizenship to the US is a felony, punishable by loss of one’s own citizenship. Im pretty sure she is full of shit about that last part, tho not sure about the felony part.
But anyway, besides the above, what crimes, if anything, can get your citizenship revoked? High treason? Mid or low treasons?
None. The only way to lose citizenship is by voluntarily relinquishing it. Afroyim v. Rusk. No criminal conviction can result in the loss of US citizenship.
Not a lawyer, but from what I understand, the situation you describe is, in fact, a felony, being a form of fraud. But it carries the same sorts of penalties as other felonies - imprisonment (up to 5 years) and/or fine (up to $250,000).