"Why didn’t these adults, who claim to care for us, spend decades refusing to deal with climate change?"

Because many of us spent those decades working our asses off to support and raise those very same young people, the most privileged and pampered generation in history. We also brought you desegregation, women's and gay rights, and the environmental movement and government environmental agencies and protections, along with this technology we are using right now and every other goddam thing.

You're welcome.