I guess you think it's coincidence that GSP got beat up in his last fight at WW and now he's avoiding his natural weight class?
And you have to be kidding me that you think GSP was ever going to fight Whittaker, let alone DC. That's absolutely laughable.
This is a guy who avoided Silva for years during his prime, saying he was too small.
You must be completely delusional if you actually believe the crazy shit you're saying.
GSP got beat up worse by Penn in his first fight than by Hendricks, and Hughes and Serra both finished him, which is worse than either GSP-Penn 1 or Hendricks. If being beat up was enough reason for GSP to leave WW he'd have quit after the Penn fight. If losing was enough reason for him to leave WW he'd have left after Hughes, and definitely after Serra, who hit him harder than anyone else has hit him.
Basically he left because after a decade he'd had enough - my guess is he got tired of the constant training and pressure (read some of what he's said about alien encounters, doesn't that sound like someone who's under too much pressure?). So he retired and did nothing for four years, and good for him. He'd made it to the top, and sooner or later everyone has to retire.
But somewhere in there his financial manager told him he's never going to make the kind of money he makes fighting doing anything else (unless he can do the Foreman grill thing), so he's come back for the money. Fine, I can understand that. But there's no way the UFC should allow him to do title fights - not at LW, not at WW, not at MW.
What I find weird is people who think it was wrong for him to get a title fight with Bisping, wrong for him to get a LW title fight, but okay for him to fight Woodley for the WW title. He hasn't fought at WW in five years, he's done nothing to deserve a WW title fight. Let's at least be consistent about earning title fights, he's either earned any of them or none of them. And I'd say one fight in five years means none of them.