You're right, red shorts fix the supposed issues. Most bomber fans who want to keep the red sash like the red shorts idea. But the money grubbers don't profit from the sale of shorts.Essendon fans, I reckon you mostly hate that terrible red jumper. I reckon a simple inverse red with a black sash would be much better. My kids play at Newtown FC in Geelong, they wear Essendon colours and because of many teams they have an inverse one and it looks good.
But to keep your proper jumper why wouldn’t you just wear red shorts for 1-3 games a year to help with the clash? They help a lot. I’ve always loved those pictures with Tim Watson, the Danihers and Maddens with those red shorts. This way you still wear the historic guernsey, so it’s a win-win.