The only vote I’ve regretted was my first. In 2012, I was so furious about the Democratic Party’s failure to make meaningful progress on climate change that I used my first-ever ballot to cast a protest vote against President Barack Obama. Rather than forcing my way into the Democratic Party’s big tent, I sat outside it.

That protest vote is on my mind as two startlingly unpopular presidents vie for another four years. Can I stomach a vote for Joe Biden, a man who promised jobs that would be good for the planet and workers’ wallets and delivered the funds for a supercharged domestic clean-energy industry, only to blow all of his goodwill by bear-hugging a far-right leader who is wanted by the International Criminal Court? And what do my personal compunctions matter as the country faces the possibility of another term for Donald Trump, a convicted felon who has vowed revenge on our democracy’s bedrock institutions?

I’m not alone in asking these questions. The Sunrise Movement, the environmental youth organization I’ve had a hand in building over the past seven years, recently announced that it wasn’t yet ready to campaign for Joe Biden. The coverage of this has been billed as a scoop for revealing Biden’s weakening support. It’s not. Sixty-nine percent of young people disapprove of the president’s job performance—and they are far from alone.

Still, the news rankled the pundit class. New York magazine columnist Jonathan Chait questioned the point of a climate group that doesn’t line up behind the only party that believes its issue is real.

This logic is sound, even if it elides the fact that climate change was not a priority for the Democratic Party until the grass roots demanded it. To Chait, withholding an endorsement is immature. If young people can’t reward politicians who make real progress on the issues we care about, why should those politicians work with us at all? The answer is that while politics is transactional, physics drives a harder bargain.

If we think of Biden’s record on climate change as an Econ 101 test, we can score him on two measures: the supply of fossil fuels that drive up global temperatures, and the demand for clean-energy technologies that don’t. Thanks to Biden’s Inflation Reduction Act, solar installations are skyrocketing, and the costs of electric vehicles are plummeting as demand grows. It’s in regard to fossil fuel supply that the president’s record is mixed. Last year, Biden broke a key campaign promise when he approved the Willow oil project in Alaska. And while it’s commendable that the administration paused liquefied natural gas exports earlier this year, the United States remains on track to “produce more crude oil than any country, ever,” according to the US Energy Information Administration. The more of that crude that is burned, the hotter our country will get, and the more people will suffer as a result of fires, floods, and heat waves, no matter the demand for clean energy.

For the pundits who try to wave this all away, consider the recent warning from the secretary general of the United Nations: “We need an exit ramp off the highway to climate hell.” Indeed, scientists at the UN’s World Meteorological Organization have announced that there is an 80 percent chance the globe’s temperature will temporarily surpass the target set by the world’s governments at the Paris climate accords within the next five years.

Whoever is elected president in November will be in office, presumably, the majority of those five years. He will have enormous leverage in either stanching the rising seas or abetting the dominance of fossil fuels for the rest of the decade. This is the strongest point made by Sunrise’s critics: Regardless of how much or how little President Biden has done on climate, who exactly is the alternative to him?

It’s a fair question. It’s also fair to consider that Biden’s support for Israel’s war on Gaza is a major sticking point for young people, forcing not just us but all people of conscience to question our votes in November.

But rather than thoughtfully engage us on these issues, commentators like Chait scold climate activists for not staying in our lane. Evidently, it doesn’t occur to these critics that young people are fighting for a livable future not only for ourselves, but also for those in Israel and Palestine.