There are quite a few great opinions from what is a great question. There is an expression,’Nailing your colors to the mast’. It says what you are thinking and stand by that. It’s a nautical expression from the messages flags say that are raised on ships of old. In Nelsons day it was ‘Every man is expected to do their duty’ and therefore rallies under that flag and message as one. This is what I would say with the single pride flag with a single objective. One flag one aim. It represents one ideology which, in essence, is to have equality for all with no discrimination. If you apply that to society as a whole that would include, color, sex, religion and any alternative lifestyle.
I wish it was that easy!