We really should thank the hundreds of climate-change kooks who took the field at halftime of Saturday’s Harvard-Yale football game.

Their presence reminded many college football fans that the Ivy League actually plays the sport. 

Most of us tend to forget that. They don’t play very well. They produce few NFL players. A decent FCS team would knock the brains out of the best of the Ivies.

Then again, no one goes to an Ivy league school for tailgating and football Saturdays. They go there to learn to be masters of the universe while the rest of us drink bourbon and watch insanely talented athletes clash at various State U’s every Saturday in the fall..

Frankly, I think we have more fun.

Still, the Harvard and Yale game is a storied match-up, dating back to 1875. Yale holds a slight lead in the number of wins. This was an important game for many alums and students from the two universities.

According to news reports - let’s be honest, few of us were watching while Penn State and Ohio State were battling -  hundreds of climate activists stormed the field once the Yale band retreated and the players were warming up for the second half.

Seems these protestors decided this was the perfect occasion to demand that their schools, with their combined $71 billion endowments, divest from Puerto Rican debt and the fossil fuel industry.

What a pity that the folks who bought tickets to watch a football game didn’t head to the parking lot and start revving their engines in a sort of counter fossil fuel protest.

Now that would have been fun.

Instead, the police stood by while the activists tied themselves together. By the time the demonstration was over and some of the handcuffed students were phoning Mummy and Daddy for bail money, the game had been delayed for an hour.

Bad luck, since the historic Yale Bowl stadium - the first bowl-shaped football venue in the country, built in 1914 - lacks lights. Which meant that the rivalry game, which went into double overtime by two teams without much defense - was played partly in the dark.

According to ESPN, both the Ivy League and Yale issued lukewarm condemnations of the disruptive actions.

“In a statement, the Ivy League referred to the protest as ‘regrettable.’ Yale said that while it ‘stands firmly for the right to free expression,’ it had issues with how the protesters went about their demonstration.

‘The exercise of free expression on campus is subject to general conditions, and we do not allow disruption of university events,’ Yale said in its own statement.”

Actually, Yale did allow this screwball halftime show to disrupt a university event.

Naturally, leftie candidates for president cheered the disrupters, while at the same time dissing Americans who love college football and don’t want to watch through night-vision goggles.

Several of the demonstrators declared that this was just the beginning. They plan to disrupt more sporting events.

Just let ‘em try to stage this at a real football game outside out of the Ivy League. As someone noted on Twitter, if this demonstration had happened at an SEC or Big 12 game the field would have been cleared in about 30 seconds. By fans.

Chances are you don’t care, but Yale won 50 to 43. In the dark.