Random thoughts: - Freedom and democracy are different things, if some people think democracy isn't that important, it does not mean they do not value freedom. - Maybe the millenials are "not open to diverse opinions", but maybe they're just sick of bullshit. "Free Speech" can be interpreted in different ways (and each country in the world does that).
I think this line of thinking stems from the belief that democracy is the default state, and that it can withstand suppressing voices that disagrees with the dogma someone fights for.