Come on now guys, let's calm down a bit.
There's a little bit I wanna talk about here because I'm one of those hipster douches that can say I was watching Conor McGoat before he was in the UFC.
First point for me:
I wouldn't say he's ever really outclassed Nate Diaz even in the fight he won, that fight still ended with Diaz standing over him pounding the dude. Wouldn't really say he outclasses Holloway either.
Second point and the main one:
McGregor is DEFINITELY not a gatekeeper.
... but he definitely is a great example of a built up star. He was led by the hand to his first title shot. He was given favourable match ups all the way there, including a less experienced Max Holloway who was also coming off a loss. The UFC didn't know Max would end up being a beast, to him he was just a foot note. They didn't give him particularly dangerous strikers either save for Poirier who wasn't as good as he is now, you never saw him fight Cub Swanson. As for whether or not he would have wrecked Lamas - I think we all need to be smart and reasonable and say we don't know. For all we know Lamas could have laid on him for an entire fight.
He didn't have to fight one wrestler to get to the title (in the most wrestler heavy division around), the only wrestler in the featherweight division he fought was Mendes, and that wasn't planned - Mendes only had two weeks. Since Mendes he hasn't fought a great wrestler... the closest is Eddie Alvarez, who is good but also isn't the kind of guy to blast a double, he'd rather strike with you.
He was gifted the title against RDA with a grand total of 0 lightweight fights... and then again vs Eddie Alvarez with that same total of 0 lightweight fights in the UFC.
I think Conor McGregor is a great fighter, but I think we will probably remember him more for the people he didn't fight. Large in part because of the retarded hype around him, there are people who genuinely believe he's the greatest MMA fighter. In a perfect world we'd see him fight Ferguson, Khabib, rematch Poirier, Holloway - we'd get to see him fight Edson Barboza... but I don't see that happening. I wouldn't be at all surprised if we don't see him fight again, despite what Kavanagh and company say.
It's really important to note that McGregor was really built up in the same way that professional boxers are. They knew what a big deal he was from his Cage Warrior days (he was pretty much the only fighter from cage warriors anyone could name at the time) and they were shooting to get him for the title because he talked shit and was entertaining.