Also, climate change might have catastropthic results on some parts of the world, and positive effect on other. I wouldn't mind for instance if Central Europe got warm climate similar to Mediterranean. Now, why would I fight a change that clearly benefits me? :)

In principle you have a point but if millions of people have to leave their home area and are looking for a place to live things may be less golden.

the same thing happened in Syria. The war there didn't really impact Europe directly but the refugees certainly did.