If by “liberal indoctrination” you mean feminism, immigration, globalization, egalitarianism, science, facts, multiculturalism then 100% happily and unapologetically, guilty as charged. We had rightwing speakers come the the university. Haig, Rumsfeld, Dole, Gingrich, Goldwater, Buchanan were some that I remember. Protests, sure. Even some liberal speakers like Jesse Jackson, Bob Gebhardt earned some protesters. With the exception of Buchanan and maybe Jackson, none of them were as polarizing as Milo, et al are. And in a way Milo et al would be a protest against what they -wrongfully, IMO- perceive of the evils of modern society.
UC Berkeley is a liberal school, and they quite famously wear that on their sleeves, so to speak.