This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
Nouns are capitalized wherever they appear in a sentence. I used it as an adjective applied to a group of people who espouse actual libertarian values.
I meant your sentence “…even anarchists and libertarians well understand and acknowledge.”
That’s using it as a noun. Not all nouns are capitalized in English.
Unless you’re German or several hundred years old, no, nouns are not capitalized. If you wanna use grammar as part of a political debate, which doesn’t make a lot of sense to begin with, at least make sure to know what you’re talking about.