the rabbi is double talking. in reality he is a peacenick, was a partner on the oslo accords, and one of the first religious rabbis to promote land for peace. his voters are right wing so he talks harshly to satisfy them. even when he voted against the hitnakut, 1. it was passing anyway so why should he anger his voters, his vote wouldn't matter and 2 he mentioned that if it wouldn't be unilateral he would vote for it. you gotta understand his voters to understand his radical talk. as a person he is fairly moderate.
Opposition leader Isaac Herzog calls on government to allow Syrian refugees into Israel (Haaretz)
from the article: Shas spiritual leader: Abbas and Palestinians should perish