What is being a libertarian mean to you and what does it consist of for others?

I’ve been noticing a lot of people on here claim to be libertarian and yet support ideas and stuff that seem to be very opposite of what being a libertarian is.

From what I understand a Libertarian supports

Smaller government. Lower taxes. Removal of all victimless laws.

In this case, doesn’t supporting either main political parties mean you are not libertarian because they so far have only increased government size, raised taxes, created numerous victimless laws?

I am up for any debate below in the comments with yalls opinions.