The sad fact is that this is true. There are reasons how and why things came to be that way. It is also true that many universities out side the USA are as good, or better than many of the schools in the USA.
It is also true that in some countries you can buy your diploma. This is something that does not happen in the USA. Because of this a person may get in the door with a foreign degree but hey will be at a disadvantage until they prove themselves.
Then again that is usually the case with any new employee so expectations of what a degree can do for you, these days, may be higher than what can be achieved.