It's clearly Wyoming.
Idaho is a hotbed of right-authoritarians and more quasi-fascists get elected to local offices every year. That alone should immediately disqualify the state.
Colorado has gun control and voted against scab laws every time it's made the ballot. Montana's labor laws are better than national average and obviously has no scab law. Same with Alaska, which also has a strong public sector. New Mexico also has no scab law.
Arizona is pro-entitlements because of it's huge elderly population. It also lead the nation in "tough on crime/borders" heavy policing not that long ago and many of those laws are still on the books.
Nevada is fairly lax but it has gun control laws. It also has a large labor movement in the cities despite its scab law.
Utah has restrictive social policies because of Mormonism, although it has loosened a little in recent years.
That leaves Wyoming. It's dominated by ranchers, has few Mormons, has no significant progressive base, yet it hasn't attracted anywhere near the amount attracted the far-right currents Idaho has. It isn't "pure" libertarianism, but it's the closest thing you'll find.
Anyway, Idaho, where Ammon Bundy got 17% of the vote in 2022
The Bundy's are neo-Bircher Armageddonist authoritarians who think ranchers be allowed should seize public lands for themselves so they don't pay grazing fees (and pushes Soverign citizen rhetoric as a poorly-cloaked pretext). That's proof of a current in Idaho, but it's not the current you think it is. Case in point, if you read the
Turner Diaries, some "libertarian" arguments are used against the System, but it certainly isn't a libertarian story.
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