This bigot is a perfect cautionary story for single issue voting.
He is well known to be a bigoted piece of shit, but he pulled a "broken clock" and was inevitably right on one issue, which was clearly enough for people to either completely ignore, or not even look in to his history, which is pretty scary..
(to be clear - I'm not saying voting for a candidate who supports free Palestine is a problem, it's voting for a candidate who only supports a free Palestine while stomping on every other marginalised group - a problem. If that is your only option, better vote none than vote for trampling someone else's rights)