So, basically they caused it because of their ignorance, just like I said. And you say they aren't responsible because they were easily fooled by propaganda in 1930s. {Which I say is no excuse} Never mind the fact they mostly lived well past 1930 and voted for many other questionable characters and laws for the next 100 years, after being told by the commies they were going to use the government to take over with their 100 year plan.
At the same time the current youngest generations don't get that luxury of being absolved because they believe much better crafted propaganda foisted on them by "multiple sources" telling them, "Boogieman is presenting this as lies for nefarious reasons." And most all media sources agree.
The longer someone has walked this earth, the more responsibility they bear for the current situation. Simple as that.