It sure is discrimination. And there's nothing wrong with it.
Discrimination
1)the unjust or *prejudicial* treatment of different categories of people or things, especially on the grounds of race, age, or sex.
Prejudicial
2)leading to premature judgment or unwarranted opinion
I belong to a group that has earned the burden of paying higher insurance premiums due to our groups tendency to be more dangerous behind the wheel than women. Yes, I'm pre-judged when buying insurance due to my testosterone levels, but it is justified and earned by my groups average behavior that differs from others. The fact that I am a better and safer driver than 99% of the public has no bearing on averages. Lots of discrimination is earned by groups. Unfortunately it's the individual that suffers. In the immortal words of Dennis Leary : "Life's gonna suck when you grow up, when you grow up. It sucks pretty much right now." Crying about it just makes it worse, especially when there's nothing to cry about, as is the case with the "pink tax".