lol folkstyle wrestlers are not that strong compared to freestyle. They do not know how to hand fight, they have no idea how to do groundwork and their shots are sloppy. Even your college wrestlers are nothing great.
I have wrestled American highschoolers and D1 level wrestlers. They are not as great as you think. If i can tool some American highschool wrestling champ I think Khabib will.
You realise Khabib is from Dagestan where wrestling is practised from a very young age. This idea that he is an MMA wrestler is nonsense. He has wrestled in a region notorious for developing very high level wrestlers his whole life. He has managed to adapt it to MMA, but his base is wresting.
There isn't a single wrestler in the USA who is as accomplished as the man Khabib is wrestling in this video.
Your senior team was very average, nothing special. Somehow in recent years they seem to be much fitter and stronger than any other wrestlers though. It must be their new strength and conditioning routine.