I’d say it has less to do with it being an international sport and more about folk style lacking any upper body technique. It is rare to see a folk style wrestler who looks comfortable in bodylock positions. Most of the early wrestlers who were successful in MMA were Greco guys. Sure, they had the typical American upbringing of folk style but were on the Olympic ladder for Greco. It may not seem like much given the fact that Greco guys in the US are for the most part wash-outs from freestyle, but as in the case with GSP and many Dagestanis have shown, you don’t need to be the best wrestler in your region to have success.
When people gush about what a great wrestler the Dagestan is are, I remain reserved. They aren’t great by Dagestani standards, and even looking at their technique it is basic stuff. It is just that folk style doesn’t emphasize upper body, like at all. When you see Khabib and crew dominating look at where they are going to. They don’t just continuously dive at legs. They will climb up into upper body if a single fails and completely rag doll their opponent.
Flash back to early American wrestlers...Dan Henderson, Sonnen, Couture, Lindland. All of them collegiate wrestlers who transferred into Greco guys. They had both the leg attacks and the upper body. Hell, one of Lindland’s crowning achievements was “rope gate” where he fought Fedor and many thought Fedor grabbing the ropes prevented Lindland from getting the win. Lindland...the Olympic greco silver medalist. But those days are gone and it is almost exclusively folk style, and low level at that. I could go on and on.
I also think arrogance has a lot to do with it. Sorry, but many American wrestlers do have this superiority complex when it comes to wrestling. Things are changing as more young wrestlers actually prefer the international styles, but I have come across young wrestlers who bang on about how “we kick those Russians ass in wrestling” to which I am baffled because Russians dominate the sport.
Folk style transplants also behave in the same annoying way that BJJi guys used to, and don’t receive nearly as much scorn. They swear all you need is wrestling. They swear it is the most dominate martial art for MMA. It is to the point that a lot of them seem to not put in nearly as much time into oh, I don’t know, 2 THIRDS OF THE SPORT. Their striking suffersand they don’t seem to give a damn about jiu jitsu. Look at Khabib and crew. They have sloppy yet effective technique and are well rounded grapplers with great understanding of position and slick transitions to submissions like Makhachev. They’ve fully embraced MMA. Typically folkstylers don’t and often get a rude awakening. Just as jiu jitsu guys in the past would flop everywhere because BJJ was the best, folkstylers dive at legs with no set-up repeatedly even if they are failing miserably and get outclassed in the game of MMA. Their mentality needs to change and they need to fully commit to MMA.