I don’t think the LP, then or now, would cotton to Ron Paul’s anti-business rhetoric. To couch his opposition to encroaching fascism in terms of corporate evil rather than government corruption, has more than a whiff of liberal batshit to me. (No offense there, Battman.)
For sure, not back in the day...when my parents were entertaining libertarian activists and discussing such issues while I was bouncing on some now-arthritic libertarian knee. :)
Maybe now they have some new generation that knows not Hospers and Rothbard; but I can’t believe they are now intermingling with anti-business or neo-luddite greens.
(Though one can almost hear Rand saying “You asked for it!”)
So, the idea the libertarians won't take ideas from Lefties is wrong. The standard has to be, whether the concept is correct, not where it came from. I do know Kolko or Williams repudiated the use that libertarians made of their work. They didn't like the Free Market types using their analysis for their own purposes.