True libertarianism supports homosexualizing the military and immigration at the federal level.
It also supports unlimited, unrestrained abortion and homosexual adoption, marriage, custody, etc.
Libertarians are not suddenly unlibertarian at the “state” level, they promote libertarianism at all levels, the PTA, city, county, state, federal, they are libertarians because they are not conservatives and they want to deconstruct traditional American conservatism.
Don’t confuse the Libertarian party with libertarian-ism. There is a right and left to the libertarian belief system. One is more compatible with conservatism the other with progressives. This is no different than the Republican split between RINOs and conservatives. The right leaning branch of the Libertarian party falls in-between that divide and can provide votes in an election.