Why do guys say I can't watch hockey because I'm a girl and don't know what's happening?!?

I am probably the biggest fan of the Bruins out there! Yeah I'm a 15(almost 16) year old GIRL! And let me tell you...I KNOW MY HOCKEY! I'm not one of the little fan girls that only likes the Bruins for Tyler Seguin...nope nope! My favorite player is actually Milan Lucic, not only because yes, he is the sexiest player, but because he can FIGHT! I understand the whole game and yell at the TV the entire game! I catch offsides when the ref doesn't and tons of penalties there should be when they aren't called! why is it so discriminated that girls can't watch hockey?! Bruins are taking this all the way! Stanley Cup...yes please! And yeah, i did actually cry when Horton got hit and not just because he's hot...but because he is a huge part of the team and i was furious! ! I'm not this little prissy girl that loves pink(I'm not like 500 pounds, I'm normal, fit in with everyone else), but i love my hockey!do you think I am right and I know my hockey? Or should I be discriminated against because I'm a girl and its a typical stereotype?!