Are you saying libertarians want a free lunch???? I kinda recall libertarian bumper stickers pronouncing that there was "no such thing as a free lunch." Are you sure you aren't describing some other group?? I am mystified. Truly.
I like your "picnic" definition. I'm not sure what percentage of the 'tarians know that it's based on parasitism. There's never been a 'tarian society. That's not b/c "not enough people are smart enough to understand the wonderfulness of it." It's b/c not enough people will allow the grotesquely selfish degeneracy of it at their expense. If you're over 30 and a 'tarian - you've got a problem.