Subscribing to a political ideology for selfish or hypocritical reasons is hardly rare. I suspect there would be few libertarians left in the world if their motives had to be pure. Most just want to not pay taxes.
I wouldn't trust a state that's threatening taking to take land without compensation. A state that's electing leaders who sing "Kill the [insert your racial identity]". Would you? Whether or not they were a-ok with a different state doesn't matter, should they be punished for that? What about their children?
I could be wrong, but I didn't see an example of them being "libertarian to the extent" of anything, in that they do leverage the state insofar as it furthers their racism. They just strike me as libertarians that may or may not be racist.
