That's quite incorrect as I already pointed out. The only things that the libertarians have in opposition to marxist democrats are the economic issues, and gun control.
Libertarians believe in American sovereignty and getting us out of the UN, something that 99% of Republicans don't believe in.
I don't think Marxist Democrats are exactly opposed to the rampant Fourth- and Fifth-Amendment violations which have become a routine part of Prohibition II. Further, many Libertarians are opposed to the use of public schools to indoctrinate students into sexual immorality and Marxism. Further, if you separate out the issues where libertarians disagree among themselves, I think you'd find that while a fair number of libertarians take the liberal side in disagreements with Republicans, nearly all of them would take the conservative side in their disagreements with Democrats.