Uh, no, there’s a big difference. Much like the word ‘liberal’ got hijacked - look at the definition of a classical liberal and compare it to the current one; two completely different things.
Also, little-l libertarians are not generally afraid to post our positions in writing. It’s easy: “Is it in the Constitution? No? Then the Feds have no business doing it!”
Uh, no, there is zero difference between libertarians and the party they formed.
For instance this libertarian position.
“”Sexual orientation, preference, gender, or gender identity should have no impact on the government’s treatment of individuals, such as in current marriage, child custody, adoption, immigration or military service laws.””