Democracy is rule of the people, by the people, for the people. It entails the subordination of political minorities to political majorities by definition, as majorities represent more of the people.
Saying that the people are all well and good until they make the wrong choice, and thus their freedom to choose must have hard limits, is a perfectly reasonable and defensible position (I do not agree). But it isn't democracy. It would be better to call it liberal constitutionalism or something.
Alas, since WW2 (and earlier in some places), it has been verboten to be against democracy, with the result that the word has been emptied of all meaning. A monarchy like the UK, a monarchical presidency like Fifth Republic France, a Stalinist dictatorship like the German Democratic Republic, all officially define(d) themselves as democracies. It's doublethink.
Everything is a restriction on 'individual liberty'. Because most governments - of whatever form - have passed relevant laws, I do not get to drive a car at 150mph down country lanes. That is a restriction on my liberty. I'm not crying over it. (Not least because I can't drive.) When people say such things, they normally mean property rights, of course; but in no functioning society are those inviolable either. I would rather they were violated by 51% of the population than the 0.0001% who happen to be judges - that is, state bureaucrats in fancy dress.