Re-read my post again. If you still don't comprehend, re-read my post again.
The US's economic boom in the modern history really started from 1960's and beyond. Primarily due to Mr. Algore's father starting the initiative to build connected highways (and like his dad, he came up with the Internet's commercial concept of creating the "information super highway"). Take a look at the results of both, the real highways built during the 60's, and the information super highway (the internet) built in the 90's. Try to understand what both of these have brought to the US and to the entire globe. The economic importance of this route for Pakistan might dawn on you.
Just to get your logic straight. Panama is a country with less than 4 million population. Pakistan has a 200 million population and another 300 million from the Chinese side that will use this trade route for goods shipping and receiving. If Panama started to use the same sized population that would use the Panama canal, it would grow significantly within a few years. But 4 million is nothing compared to Pakistan or China or India's population. So your analysis have to have some real logic behind your posts.