It really depends on what software you have installed. Quite a few packages require Python to function, and removing it will prevent/affect their functioning. This is one of the main advantages of Arch though: you start with a bare-bones system, and build from there as you need.
One question though, why do you need to uninstall Python?
Is there a risk that my Arch will start slowly disintegrating if I uninstall Python? Because that’s what happened to my Ubuntu 18.04 install.
It really depends on what software you have installed. Quite a few packages require Python to function, and removing it will prevent/affect their functioning. This is one of the main advantages of Arch though: you start with a bare-bones system, and build from there as you need. One question though, why do you need to uninstall Python?