I've seen the same among most Republicans I know. They're despondent because the Republican party these days is just fighting against the far-leftists that are taking over the Democrat party. It's basically a one-way ratchet leftward: the Democrats get power and move stuff, then the Republicans get power and just prevent movement for a few years. The Libertarian party is the only one that's truly fighting for a better future with things like small government, gun rights, and lower taxes. The LP presents a positive vision of the future and a plan to get there that I like. So I'll keep voting Libertarian, even though I know we have no chance.

Maybe the idea is the government shouldn't be in the business of saying what they future should look like?

The government keeps the roads fixed and the playing field level and the country safe. People, as individuals say what the future looks like.