My synopsis on why Eastern Block Countries/Middle East Countries blow past us in Freestyle:
1). All they do is wrestle Freestyle: The majority of the wrestling done in the US is Folkstyle. The World Championships and Olympics are wrestled under Freestyle rules.
2). They treat wrestling as an art. The teaching techniques over there revolve around movement, strength, physics, and flexibility. The vast majority of the way wrestling is taught over here is "toughness".
3). They come from a "harder" environment. Shapes their perseverance, grit, etc..
4). They don't have as many options over there for sports. We have kids that play basketball, baseball, and football. 99% of those kids don't play either baseball or basketball and 100% don't play football. They can focus on wrestling.
5). The value system in their countries are WAY different. The coaches are TOUGH. They are hard human beings. Even in an individual sport like wrestling when they take they mat they are representing their family, their wrestling club, and most importantly, their country.
There's a multitude of reasons why Eastern Block Countries and Middle Eastern Countries normally outperform the US in wrestling, but I think these are the most glaring differences in why they are so successful at wrestling.