I don't look at cheerleading as a sport. I look at it some guys sitting around a sporting event saying "We got games. We got beer. But something's missing...... BABES!" And thus cheerleading was born.
No. Not even close.
Cheerleading was a guy activity until there wasn't enough guys to participate in it because too many of them went to war (I think it was WWII but I'm unsure), only then were women accepted. The public liked it better that way and it has been a girl sport ever since.
And being girl only or male only doesn't make something not a sport. Right now, this is one of the most dangerous sports there is and certainly much more dangerous than the game they are cheering on. And it is practiced with equipment that is, safety-wise, terrible. The reason for that is that there's only one company in the game and since it's not officially a sport they aren't mandated to pay any attention to safety at all by the government.
The condescending attitude towards this sport is not only unwarranted, it maims numerous girls every single year.
Just watch the video posted above.