The combined average height for males and females is higher in KSA for instance alone let alone other Arab countries.
As for having had around 10-15 people who have excelled in marginal sports (worldwide) such as weightlifting (a few weight categories moreover) and wrestling in the past, say 20 years, says nothing about the other 99,999% of the population. The only thing it tells, in the case of Iran, is that there is a tradition of those two sports in Iran and a following. As far as strength goes and size, you will find such people in every country. Then you "only" need to give them the right environment to excel in. In the Arab world, South Asia, Africa, South East Asia, East Asia, Latin America, most of Europe, North America etc. there is simply no strong tradition or following of those two marginal sports. If for instance those two marginal sports had the same popularity in the US or Russia (for instance) and their was this kind of focus (if US and Russia were almost always only successful in those two sports like Iran is) Iran would probably not stand a chance simply due to having a much lesser population pool to pick from and less money to invest in.
Egypt for instance happens to be dominating in squash but that sport hardly has any following (of this size) in the world anywhere outside of Egypt. There are many other of such examples. Hungary for instance, which is a 10 million big country, have won 800% more gold medals than 80 million big Iran throughout history and that is mostly due to them having specialized in marginal sports worldwide such as water polo, canoeing and fencing.
Anyway as far as potential goes, you should not be complaining, as Iran happens to be one of the few countries in the region if not the Muslim world as a whole that has a somewhat strong tradition in a Olympic sports category. In most other countries there is only 1 dominant sport that happens to be football which is the world's most popular sport and where the greatest rivalry exists.
P.S. BTW most weightlifters are using performance enhanced drugs. Similar story when it comes to bodybuilding, strong man competitions etc.
Where did your hear such nonsense? Did the "Supreme Leader" tell you that? Seriously man.
