First of all, the iron dome was not entirely funded by the US, it was also funded by Israel. Secondly, one of the reasons why the US funded it is because it benefits the US. They get real life testing of a weapon that the US can use.
Health, where exactly did MDD state anything about his feelings about Charedim? He merely stated that it is not a right to sit and learn and take funding from people, especially if they don’t want to give it. That seems pretty reasonable to me.