For the context of this comment, this is if these "smart people" couldn't come to the U.S. instead. ("The argument being that as we skim the top people from the

For the context of this comment, this is if these "smart people" couldn't come to the U.S. instead. ("The argument being that as we skim the top people from the talent pool of other countries we reduce their capability to push innovation and ideas within their own infrastructure.") Basically, if these "smart people" couldn't come to the U.S., there would be no option. They wouldn't have any where else to go, and would have to help their homeland in order to help them and theirs. No other option if they couldn't come to the U.S. instead (if the theory is correct).