Immigration hurting Jordan economy but not the case in U.S.?

Lets See ? The king of Jordan requested from the U.S. billions of dollars because the massive immigration from Syria due to the war is killing the Jordanian economy. The U.S. is experiencing the same type of Jordanian massive immigration from mexico but this massive immigration from mexico just can't be the cause of the economic woes in the U.S. for some odd reason ??

P.S. Greece has the same problem with immigration crushing the Greek economy. The city of Athens Greek is an economic nightmare compared to Detroit with massive poverty. Greece is the corridor for muslims to migrate into Europe and Europe is an economic nightmare too. Italy gets massive immigration from African and finally had to put the brakes on it because of intense economic trouble due to immigration.