Rav Meir Kahane has not been convicted by any court, either Israeli or American. He was killed by an Islamic terrorist for creating the Jewish Defense League.
Ben Gvir is a follower of Kahane in that Jews need to be protected. He officially stated that he is not an opponent of all Arabs, not a racist. According to him, he is opposed to those Arabs who want to kill Jews.
The current government has refused to seize hundreds of thousands of firearms in the hands of Islamic extremists. At the same time, Bar-Lev and Ganz refused to give weapons to the Jews for the purpose of self-defense. If you want Jews to be killed, vote for Lapid, Lieberman, and Gantz. And if not, then vote for Ben Gvir.