"We" won't deserve it. There is a small minority of people who have worked for 30 years to suppress research about climate change. For example, Exxon has known about climate change for decades, but funded denialists [1]

Unfortunately, these people are unlikely to suffer very much from climate change, because they will be able to afford higher food prices, private security, etc.

So a more accurate statement would be "Then millions of undeserving people will die, and the people who deserve to won't."

[1] https://en.wikipedia.org/wiki/ExxonMobil_climate_change_cont...