For all their moral posturing, the kids who delayed last Saturday’s Yale-Harvard game were a smug and silly bunch.

The main demand was for the schools to divest from fossil fuels, a beyond simplistic “solution” to a genuine challenge. Mitigating climate change requires global reductions in CO2 emissions, but the issues are far more nuanced than the last great divestment battle, targeting apartheid in South Africa.

Indeed, obsessing about carbon emissions as utterly satanic is all about First World privilege: The Third World is still struggling to escape poverty, and sees no way to do so without burning a lot of oil and even coal.

So most of the kids who stopped play for an hour were just posturing in ignorance.

Nor were they remotely daring: Climate-change extremism is common “wisdom” on Ivy campuses, so much so that members of both teams spoke up in support of a protest that left them finishing the game in the dark.

Of the 148 students and alums from both schools who charged onto the field, only the 42 who refused all orders to leave got ticketed, for misdemeanor disorderly conduct — and there’s no way either school will actually punish them.

We have some sympathy for the few protesters who sought to highlight China’s horrific treatment of its Uyghur minority, and those complaining about the schools’ unseemly investment in Puerto Rican debt.

But even those causes are ill-served by what was, essentially, the college version of a toddler’s meltdown.