Creating a bigger difference between the poleward temperature and equatorward temperature makes it more windy. why is that?

The simple answer is : Wind is affected by air movement, air movement affected by air pressure, and air pressure is affected by temperature
creating a bigger difference between temperature will create a bigger transition of the air pressure, which make the region more windy

hope this helps

Europe needs to build a trump-like wall that will spread across europe making it impossible for migrants to cross they need to spread pig guts all over this wall so the muslims will never consider crossing into europe..you might be asking "can't they just fly over with planes? " well yes they can so we will install thaad missile protections system to shoot down any aircraft that violates europe's air fourth would be to start a fourth reich in germany.. last but not least.. make europe great again!