It is really impressive that people continue to insist the pull of the center can effectively repel the increasingly radicalized right in the US. I have a theory why this is the case. It is better to say something plainly false by the prior 50+ years of evidence but insist it will be different this time than just admit you're basically fine with the unjust order of things but don't like that a dumb, brutish, non-smooth operator is the president. A lot of stuff Trump has taken the most crap over have existed to some extent for several presidencies. The problem isn't what America is doing to asylum seekers, foreign countries, people in need of social welfare, etc...the problem is Aaron Sorkin's President isn't the one in charge of doing it. My feel for people over 40 - at least the ones that actually vote (mostly top 10% income earners) - is that what they want most from the political theater is the consent to feel okay in their relative comfort despite a realization of just how that sausage is made. The GOP is too naked with that process and it makes that 40+ centrist feel uncomfortable with themselves. They just want to know it is okay for them to keep on doing and voting for the things that will destroy this country and the planet (for humanity at least) but will let them ride off into the sunset.
I think that your information is flawed. I checked a few sources, and this is what I find of people who answer:
All Americans - 48% left of center, 39% right of center, 11% in the center
Millennials - 54% left, 33% right, 12% center
Gen X - 48% left, 37% right, 13% center
Boomers - 44% left, 44% right, 9% center
Those older than Boomers - 41% left, 48% right, center 8%
So, the harsh reality - only the very old are a conservative majority. The vast majority of Americans consider themselves to be left of center.
You have to get those people out to vote, and the younger you are, the less likely you are to vote. Get the lazy youth of America off their bums and into the poll booths