Even if you think it was classist to say or exposed how terrible the GOP is, Romney's comment was statistically true, and we all knew he (and just about every GOP nominee ever) believed that behind closed doors. 47% of the population benefits from increased government control of the economy, whether that'a those who work in public education, government employees, union members, welfare recipients or whomever. Anyone who found that comment appalling was already voting Democrat for the exact reason Romney cited.
Trump just blatantly insulted an American hero's parents, the type of shlt I'd expect from the fringe left (though certainly from a different bent), not from the GOP. Much worse.
Romney's problem was that he conflated the 47% of people who receive government assistance with the 47% of people who will "vote Democratic no matter what." Obviously that is not true, considering Democrats win places like Silicon Valley and NoVa while Republicans win places like Appalachia.