I forgot to include open borders, which is one of their worst policies right now.
I am a libertarian, and do not believe in open borders- nor do I believe in granting amnesty.
Actually, if you get rid of welfare, entitlement programs, freebies, and handouts, the only people you'd have coming here would be those wanting to actually BE Americans.
Further, if everyone and their cousin is armed to the teeth dang near every hour of the day, it makes it kinda hard to hijack airplanes and crash them into buildings. Also makes it kinda hard to suicide bomb people. Start chanting "Allah Akbar" at the local coffee shop, you'd better be reaching for your wallet and not your suicide belt or Allah may be picking your brains off the floor from one of the patrons ventilating your brain housing group for you. Exactly that last scenario has played out in both Iraq and in Israel.