Fine. I stand corrected. Men sitting on their butts watching other men play games. Knitting and flower arranging are more masculine as they are active rather than passive.
It’s masculine because men like it. Men like competition both as participants and observers. Maybe you don’t find it fun, but it’s telling that you feel such a need to denigrate those that do.
Actually, the famous Cubs announcer Harry Caray use to call it a “kid’s game” : http://en.wikipedia.org/wiki/Harry_Caray
So one can call one out on this, but one of baseball’s most famous announcers use to say this. He’d usually say it in reference to the baseball strikes, “They are paid millions to play a kid’s game.”