How much they play baseball in a country is not really important. Teams need to mine other countries and establish a foothold and encourage kids to play baseball. That's how teams can improve their player development long term. Become the face of baseball in [insert country here]. It's realistically not that expensive to operate an academy in a country like say Paraguay. And if something takes hold, they are there form the outset.
True, but still why would any kid want to go play baseball while most of his peers are enjoying soccer. Argentina isn't exactly an impoverished country either, so that wouldn't be as big a motivation as other places.