Traditionally, libertarian was a more polite term for anarchists.
no it hasn't.
To be sure, many non-libertarians seem to think that. It's why you get stupid sh**t like "Somalia is a libertarian paradise". Somehow they also get accused of being Trump supporters. It's almost like some people are ignorant about this stuff on purpose.
Speaking of ignorant on purpose, do you actually not know what anarchism is or are you pretending to be offended?
let's see
an·ar·chism
/ˈanərˌkizəm/
noun
belief in the abolition of all government and the organization of society on a voluntary, cooperative basis without recourse to force or compulsion.
since libertarians do NOT want the "abolition of all government" it is dumb to say libertarianism is a polite term for anarchism.
k
He asked what it means to be a left-libertarian. I answered that ‘libertarian’ is used as a descriptor for various Anarchist and Marxist currents of thought, especially as anarchist was felt to be imprecise and/or gaining negative connotations.
This obviously has nothing to do with your political party, except in so far as they co-opted their name from the radical left.