Is the money earned by a suitor who butchers pork unlawful, and would the questioner be sinful for marrying him before he changes his profession?

The prohibition of eating pork is well-known in the religion of Islam. Cooperating in that which is unlawful is forbidden, as Allah Almighty says: "And do not cooperate in sin and aggression." And everyone who assists in a sin is cursed. This includes every sale, rental, gift, or loan that aids in sin, if the intention is clear. What a man earns from selling pork is unlawful and he must abandon it. It is not permissible for a woman to accept him as a husband until he leaves this work, if he does not have other lawful means to feed her and their children.