I'd support Allow opting out of Social Security and deregulating healthcare right off the bat.
The rest, as stated, are too vague or far for me to accept. Tone them down and clarify and I'd likely accept all of them.
For instance, free market capitalism cannot exist in the absence of regulation required to maintain the free market.
Some drugs probably should remain illegal, such as cocaine. But some like weed should be decriminalized. But the better notion is not to ban things, but to educate to destroy the demand. Why legislate when the market has tanked?
Was the intervention option a mistake? Last I checked, liberterians aren't for nation building
Some foreign aid needs to die. Now. But some, such as for development is worthy. Not to mention military aid.
Gun bans. What kind of gun bans? Bans that prevent mentally ill people with illusions and voices telling them to kill everyone? Yeah, I'd prefer that to stay on the books.
Amensty. I need details.
As for welfare, some aspects like the EITC are good for the country.