Actually, in most places you can vote “No Preference”. In my opinion (and the opinion of a respected Rosh Yeshiva I spoke with) it’s not so much who you vote for as is the mere act of voting.
Candidates could not care less about your personal issues. But if they see that the Jewish community has a 90% voter turnout rate, they will be tripping over themselves to declare their love for Israel, matzah, and eruvs.