Justin Gaethje could have been an olympic gold medalist for all I care... this is MMA. At no point in ANY of his UFC fights did he display ANY level of grappling ability and we've seen countless competitors with elite credentials have their skills not translate at all into MMA. Should Fedor be credited as the best MMA striker of all time because he sat in Semmy Schilt's guard for 20 minutes? Does Ben Rothwell become a K1 calibre kickboxer because he KO'd Reem who KO'd Badri Hari?? Of course not.
Gaethje is a striker who overcommits to strikes frequently and has faced nothing but fellow strikers in his career just to set up entertaining brawls. The minute he fought someone who was a threat to him on the ground, he was tapping like there's no tomorrow. If this is the best MMA Grappler you can come up with, wow you are desperate.
Also, genuine LOL @ the hype of RDA who struggled with wrestlers HIS ENTIRE UFC CAREER. Should Tyson Griffin be listed as one of the best MMA grapplers of all time considering he was actually able to keep RDA down without the fight getting stood up unlike Khabib? How about Michael Chiesa??
Khabib can't control who the top contenders were in his brief time as champion but the fact remains that he was in the UFC for a decade and missed out on the majority of the top fighters from 2 completely different eras. He blanketed RDA and then sat on the shelf for 2 YEARS skyrocketing up the rankings while absorbing the hype of RDA's success despite them being 2 completely different styles of fighters.
So Khabib comes back, is comfortably ranked in the top 5, and he fights.... a UFC newcomer? Then Michael Freakin Johnson who was outgrappled by Jonathan "Vision Quest" Brookins and never beat a top 10 opponent again for the rest of his career? He had one of the easiest runs to the title OF ALL TIME and people are right to criticize him.
Benson Henderson, Eddie Alvarez, Charles Oliveira, Frankie Edgar, Gray Maynard, Josh Thompson, Gilbert Melendez, Gilbert Burns, Michael Chandler hell even Clay Guida and Kevin Lee would skyrocket up his list of best MMA grapplers ever faced. I'm sure glad we saw one dimensional strikers like Edson Barboza and Al Iaquinta fight Khabib instead of literally any of these other possible opponents I mean wow... we learned so much that we didn't already know from these match-ups!
I can soundly believe that Khabib would just default out-wrestle anyone who ever lived because styles don't matter in MMA at all and some fighters can't be beaten because they wear funny hats and wrestled bears growing up!
Who cares how awkward and amateurish his striking looked, bears guys! He wrestled bears!