What is the ruling on a questioner's insistence on traveling to Argentina for the purpose of da‘wah (proselytizing Islam), studying, and marrying a new Muslim convert, especially after his parents refused his travel due to the marriage, reminding him of the hadith, "You and your wealth belong to your father"?

It is well-known that parents have a great right over their child, and it is obligatory to show them dutifulness, treat them kindly, seek their pleasure, and obey them in what is good. So, as much as you can please your parents, do so. If they insist on refusing your travel, and the prevalent outcome of the travel is safety, and the place of residence is secure, and you do not fear for them any loss after your departure, then there is no blame upon you for traveling, even without their consent. Strive afterwards to gain their pleasure. As for your marriage to the girl and your parents' refusal of this marriage, if your parents do not have a valid justification for this refusal, then you may marry her even without their consent. Strive afterwards to please them.