They definitely don't "all vote republican". And I'm. Not sure which bush you're talking about but if you mean patriot act Bush... You're kidding yourself.
This day and age I have no way of knowing if your some troll account or not, but in the event that you're not: libertarian praxis is awful. But there are a ton of folks like myself and others who realize to vote in 2028 there's only one way this can go. Literally the article. You'll also find a lot of libertarians who are in favor of things like UBI and a strong social safety net.
And it's the same as it was when we had gay marriage as tent pole when Democrat cantidate were equivicating: we'll do the right thing, but no one gets to dictate that because the current situation is not purely a function of external factors. Two things are true: the democratic party utterly failed, and it's still our best hope for the future.