The board is called "politically incorrect" so of course that's what you'll find here. /pol/ is often referred as a "containement board", which means a board made so that people stop discussing certain topics in other boards while using the excuse that they don't have anywhere else to go. This way, other boards aren't polluted by things that people are fed up with. In some way it's a bit like a trashcan, once trash has a designated place to go, you can stop having trash laying around for no reasons.

I honestly don't know the answer to complex questions such as "should this be allowed" or things like that, I'm just glad I can discuss other things in peace and know that political discussion elsewhere can be reported and will be deleted, or even have the user banned.