1. Gary Johnson (former Republican governor of New Mexico) and his running mate William Weld (former Republican Governor of Massachusetts, who dabbled in New York politics) have respectable records, and the Libertarians might get more votes than ever this year, but they aren’t in any way close enough to win. This means all they will do is draw enough votes away from the Republicans to guarantee that Clinton will win (similar to how Ralph Neder drew enough votes from Gore-Lieberman in 2000 to elect Bush-Cheney, something Nader’s supporters afterwards were quite unhappy about).
2. If you truely believe that Clinton is no better than Trump, fell free to cast a protest vote for the Libertarians.