Libertarianism is, by definition, self-serving.

For example - they're supposedly big individual liberty people.... so they don't want the government enroaching on those.

Only they don't accept or understand that corrupt people and communities also do this... and things like governmental protections for marginalized groups matter.

You can't be pro "individual liberty" if - at the end of the day - you believe in a world where, by stepping foot on the wrong block, my liberties can be erased by the populace and their corrupt institutions.