Are there any Americans that find it disconcerting there's so many Israeli-US dual citizens in their goverment?

Thanks. Interesting info if true. I do not think dual citizenship should be permitted under any cirstance past age 19, nor should any foreign national be allowed to hold public office, whether elected or appointed for reasons of conflict of interest. In education, there should be only guest or visiting professors in residence. Want tenure? Become a citizen.