He made a business decision about a sport he had very little knowledge of (look at the franchising/moving of American sports with very little regard for history etc, look at the Raiders in the NFL!) which turned out to be the wrong decision. Britain is very traditionalist and obviously he didn't completely understand that.
After all the abuse (sometimes racist) he received he sought to put it right, admittedly probably a financial reason but so was the initial change to red.
I don't believe he's as bad as any of the other vilified owners like Oystons, Venkys etc and if it wasn't for the in hindsight stupid decision to change to red he would probably be the best owner we've had for many years.
He's tried to put everything to what's beneficial for both the fans and himself financially so if everyone just lets their sleeping dogs lie we can all push on for a better cardiff city and I hope you and similar fans can come back on board and enjoy supporting your club again.