We should kill the dictators deliberately, improve our biology deliberately, and get stuffy old people like me to change their minds deliberately. No stupid use of death as a proxy, it's a horribly blunt instrument. "Let your ideas die in your place".

Besides, maybe it's the young people who are the most dogmatic. Studies are inconclusive: https://en.wikipedia.org/wiki/Planck%27s_principle#Rebuttal If we're going to go around killing people for having rigid ideas, perhaps concentrate on the young ones, for statistical reasons.

That's a perception. Do they, though? If so, why? "I hope I die before I get old", sang The Who. Roger Daltrey is 82. Trump (slightly younger) was one of His Generation, although I expect he probably wasn't a mod. But what I mean is, the coercive oppression visited upon you by your elders is coming from the youth of yesterday, who had it lurking in them latently, waiting to gain status and money and influence. Those things arrive gradually (if at all) along with age, and I guess they make a person complacently comfortable, but the driving cause is that the person is a coercive dogmatist with a drive to oppress inferiors, and always was in most cases, because we don't usually learn to be wronger,* only how to express our terrible attitudes. So age isn't doing this, it's just revealing it.

* Undoubtedly sometimes the spark of malevolence develops into more coherent and sophisticated badness, I have to admit, so an old person has had more time to mature into being truly terrible. But this is against the pressure of rationality.