not really. when the democrats gain control, they’ll shift to the left. the republicans will run more moderate candidates to regain control, ad nauseum, ad infinitum. if the libertarians ever get more than 2% of the vote, the republicans will just absorb the ideas and the voters. same with the greens and the dems.
and as for young people being libertarian?
socially libertarian, sure… but not economically. libertarian ideas on taxation are irresponsible pipe dreams.