Its a hugely difficult situation, these guys have to go home to family who has certain beliefs and have stronger beliefs than they may have about the situation.
It is hard to put yourself in their shoes.
An example from healthcare is the anti-smoking campaign, it wasn't working with Maori and Polynesians like others when the message was you are doing yourself damages, every cigarette is killing you.
When the message was switch to hurting family, Aunties, Uncles etc it started to move the needle.
I don't envy the situation, but it goes a little deeper than just a jersey, just like a jersey isn't going to create inclusiveness, it seems to have done the complete opposite.