Also, I have been keeping up with those Youtube channels you mentioned and the proof that Ron Paul supports the voluntaryist movement or is at least a libertarian minarchist is pretty abundant. Though, he mentions the Constitution a lot and some (I forgot who) have said he uses this to create a firm target that many conservatives are more likely to support (limited government according to constitution), rather than plainly advocating small government and heavy deregulation. A negative result is, however, that some (like my friends) see him strictly as a constitutionalist and can’t see the foundation upon which he is drawing his ideas despite the obvious clues (i.e. pointing to the Austrian school in his books).
If they read what he writes, or what he suggests, or even just listen closely to what he says, they’d see it. But again, send them this video if you’d like to shove the truth directly in their face.
Also check out his reading list .