This isn't a double standard at all.
GSP was in no rush to move up and fight for the middle weight belt his entire career. Then one day Micheal Bisping wins the belt and a few weeks later George was enthusiastically calling Bisping out and ready to fight! Maybe it was a coincidence and maybe not. But I still find it hard to believe he was going to fight Luke Rockhold or any other dangerous MW. Saying you want to fight Rockhold and actually doing it are two different things.Just like saying you are obligated to defend the title and actually defending the title against Whittaker.
I remember when GSP vacated the belt super fast and said he may never fight again because of his diease. 6 months later GSP went on record and said he had a plan to fight the winner of Khahbib/Conor. Then in Dec of 2018 went on record and stated he had fully recovered from the diease! Wow what a miracle.
Fun fact: Anderson Silva might be the oldest current active fighter in the UFC right now . Randy Couture fought until 47 (?). So Anderson Silva isn't the champion anymore and he's really old. When you are this old, aren't the champion anymore and aren't holding up the division, who really cares if he calls out Conor Mcgregor lmao.
Also it was Conor who first said he would like to fight Anderson Silva and I am almost 99% sure Conor and Anderson Silva are just trolling.
Sigh, let's say GSP hand picked Bisping, which no one is arguing, GSP was very open about it.
But that hand picked opponent was more dangerous than AS hand picking Nick Diaz, Conor McGregor and Bisping.
Colitis is treatable, it took him over a year to get it under control, not sure how this doesn't make sense to you, the fact that GSP went from fighting at 185, to being able to compete at 155 a little over a year later, after suffering from a disease whose symptoms include extreme weight loss, kind helps further cement his claim of the disease.