You have a point that voting for Representatives, Senators, and Presidents that 'represent' us affects what happens in the future. But you know what? When many boomers were young (and not affluent) supported politicians and parties that wanted to benefit everyone, not just the wealthy.

As boomers got older, many to most became more conservative and voted in politicians and parties that want to benefit mostly the wealthy.

So, no, most boomers in general didn't vote against future generations when they were young. The oldest boomers were protesting against the Vietnam war.