I'm choosing between the two available choices, and it's my view that the GOP (and right wing in general) is pursuing ends that are actively destructive and has no positive agenda at all. I'm not naive enough to believe that as a rule, results under Democrats are much better, but the difference is Republicans openly embrace the faults that Democrats try to hide - namely that they're owned and respond only to the interests of the plutocrats.
And I am sympathetic to libertarian ideas, but as a practical matter believe they'd be disastrous if applied in the real world. A simple example why is pollution. Libertarians would eliminate the EPA, and then assert that people damaged by pollution simply sue to protect their own property rights and to get reimbursed when a polluter damages them. OK, great plan. But in general the harm I can demonstrate in court from, say, dirty air is either small (harder to breath, cannot see the nearby mountains) or hard to prove (lung disease can be caused by many factors, how do I prove it was pollution, and specifically the defendant's pollution, that caused my cancer - could be pollution from this other business... etc.). And a big polluter can, with ease, tie me up in court for years, require me to spend $100s of thousands or $millions, to prove damage and then survive appeals. Obviously, a lawsuit only makes sense if it's a class action suit. But right wingers want to make those suits harder to bring, and limit damages when plaintiffs win. Also, libertarians support the ability of polluters to spend unlimited sums to elect officials, including the judges, who would hear those suits. Obviously that tilts the odds against plaintiffs even more. I could go on...