Who do you think these right-wing people will vote for? The Arab parties? Meretz? It's just a bunch of right-wing voters moving from an extreme right-wing party to a less extreme right-wing party. It's actually the other way around, the fact that Bibi has to go this low in order to beat Gantz by 1-2 mandates gives me hope that he might lose.
But yes, the people that these kinds of statements attract makes me very sad.
If you want to talk about the elections themselves, right now Bibi doesn't have a way to build a coalition which might lead to a unified coalition between Bibi and Gantz which is sadly the best-case scenario right now. Bibi is a political whore, he will say and do anything just to stay in power with no regards of his personal opinion or world view. The best example is Israeli economics, Bibi is called Mr. economics for a reason, he has very right-wing economical opinions but in the past 11 years, he had appointed only left-wing ministers of treasure (in the economical ) for survival reasons. The way that the ministry of treasure acts in the past four years makes Bibi's guts to turn, but he swallows it because it helps him keep his chair. The same goes for every single thing he says or does, he is like Tofu, has no flavor and adopts whatever his surrounding is in order to survive. So best case scenario right now, IMO, is having Bibi's Tofu surrounded by Lapid and not by the extreme right.