1- Bonds are not haram if the interest accrued comes from non-Muslims. Yes, charging interest from Muslims is haram. So if you think these bonds are from non-Muslims, that money is halal for you and no need to worry.
2- Assuming the money is haram, and you have explained that to your father but he doesn’t listen, you have fulfilled your obligation, and the money your father gives you is your halal money. The sin of charging interest is on him not you. So resume positive ties with your parents and don’t worry as you have fulfilled your obligation