For some reason actual Beatniks have never struck me as being as obnoxious or as dogmatically Leftist as their hippie successors. Or is that just me?
Obnoxious? Verbally, no. But they dressed in black, smoked like chimneys (including weed), and didn't use deodorant.
Dogmatically Leftist? In those days, dogmatic leftism was to support the civil rights movement and moan about the unfairness of capitalism and The Man.
The sexual arena hadn't quite opened to politics yet -- although the beatniks slept around as much as the greasers did. Admittedly they did it with more style.