Consider who climate change is going to impact most? The climate transition, mass migrations, ecosystem collapses etc are going to hit the most vulnerable people the hardest.
Everything always hits the vulnerable people the hardest, as that's basically the meaning of the word. We can't use that to justify policy, since then any and every policy would be justified.
Climate change is likely to hit vulnerable people in the tropics the hardest. Europe did pretty well during the Medieval Warm Period. We should absolutely take steps to reduce CO2 emissions, but a slightly warmer climate is unlikely to be a disaster for poor people in the EU.
