How do you know the Aibishter isn’t tired of us all looking like a bunch of Oreo cookies?
Perhaps the Aibeshter is sitting at His table in the beis medrosh elyon, shaking his head and saying, “For goodness sake, I created a universe with COLORS! WEAR THEM!”
Seriously, if you want to effect change, talk to the Rov. Maybe he has the same goals as you, but maybe he senses different priorities to address. I don’t know where you live, but it’s possible that maybe in that particular shul, the goal is to get people to come to shul . . .