ANSWER:
He cannot force you to marry anyone without your consent and also there’s no marriage without his consent. Talk to your mother and tell her about your wish and let her talk to your father in a wise and mature manner and in Sha Allah he will agree if this guy is a practicing Muslim who will take care of you. If he insists on such a concept, you can approach the Muslim court and complain to the judge who would assign another guardian for you from your own family to marry you off.