Never heard that theory but it's a good one. Which Heinlein story?

The "otherisation" of cyclists is being fomented by right-wing publications. (By "otherisation" I mean the way that a group is identified with its members. So, my sister's little car was damaged by a big bruiser of a cyclist who scraped along it and didn't stop to apologise or offer compensation. If this had been a driver, she'd have been furious with *that driver*, but, a victim of propaganda, she now sees *all cyclists* as inherently evil. This is, of course, stupid, but it's being really pushed by right-wing newspapers, shock jocks and TV.)