No, it’s not. And I’m not interested in the opinions of people who don’t know any better.
If someone doesn’t agree with the LP platform in several particulars, they should call themselves something other than “libertarian”. The LP is pro open borders, abortion, the homo agenda, no holds barred porn, all drugs and prostitution legalized. If someone does NOT agree with those, why call yourself libertarian?
Make a new descriptive name. Or admit you agree with their platform and be honest about it.