No, I won't give them the out. This isn't them simply being outgunned on messaging or outmaneuvered by corporate interests.
Theirs is a story of objective dereliction of duty.
Previous generations leveraged the future of their descendants to improve their wealth and economic growth. Those same generations and wealthy twats are now vying for global control as right-wing governments take power.
Yeah, there was corporate propaganda at play. That does not negate the duty of the electorate to stay informed. They could have looked into it, but they didn't because it was an inconvenient truth.
We've had strong indication that CO2 was going to fuck us since 1896 from research by Svante Arrhenius. And if you want to go waaaaayyy back, the idea that a small percentage of atmospheric gases could absorb infrared radiation was 1859 by John Tyndall. Oh, or maybe we can start the clock at 1824 when Joseph Fourier (yes that Fourier) first proposed the idea of greenhouse gases.
So after 200 fucking years of knowing about this, we've still done fuck all.
So yes. Many of our parents were willfully ignorant and didn't prioritize this issue because ... The Mexicans are coming across the border and we can't have that even if we'd really like to kick off a green energy revolution. AREGGHHHH! IF ONLY IT WEREN'T FOR THOSE DAMN ILLEGALS THEY WOULD'VE SOLVED THIS!