Agree with you 100%. No way should politics or religion have anything to do with sport. I really hope the tiny minority of Celtic fans that want to make a point don't do it at the game so don't ruin it for the other fans or the club.
With such a big support though it has the potential for something to happen.
Always remember a billboard inside Dens park on the run up to the independence referendum saying something like "Dundee and Dundee United fans in support of Scottish independence. Sorry get that to phuck out of a football ground. And I would be saying the same thing if it was in support of the Union.
I emailed the club who replied that the board was not owned by them and they only got rent for it. Surely to phuck they could say what it is not allowed to advertise i.e anything religious or political.

Anyway let's hope the Celtic fans behave and keep their political views to themselves