https://en.m.wikipedia.org/wiki/List_of_members_of_the_twent...
After moderate partners abandoned Netanyahu, his only source of support was more right-wing partners, which steadily pushed government policy to the ultra-right.
It might superficially appear ironic because us in the west confuse being a democracy with being moderate. But that's not the case if a large fraction of your population are religious fundamentalists, which goes to my point. In Israel, the problem isn't just the government, it's also the culture of the majority of the population.