Hmmm... I didn't realize there were sociological issues involved.
Being in the library business, I already work with extreme left leaning types, although "crunchy" isn't a word I ever though to apply to them. I think of them as more soft and mushy, like tofu or boiled noodles. Extreme right wingers always seem brittle to me, as if one new idea would crack their world into a million pieces.
At either end, I just let their hyperbole drift out the other ear, smile and nod, and resist the urge to pat them on the head.
Interestingly, even In Real Life the advice I'm getting is based on the types of people attracted to the activity, not the relative merits of the activity itself. I guess that means I'll have to try them both.
Ah. Missed JT's post while breakfast was cooking.