As you know most of Latin America received immigrants historically. I guess that's basically the long and short of it; the Immigration Act of 1924 meant that the U.S. wasn't too open for emigrants from the near east and so they went to Brazil and to other parts of Latin America. Apparently Venezuela has the most Druze of anywhere outside of the Levant.
I mean sure, but what were the push/pull factors that led so many Arab immigrants to settle in Latin America? why would they go there instead of Europe?
Well, those Latin American countries received large-scale immigration from Europe also. The same economic opportunities that made the New World more appealing than Europe for those Europeans would certainly make the New World more appealing than Europe for most Arabs. (Considering that those who moved to the Americas avoided the direct impacts of the Second World War, it's easy to see why this would have been a good decision.) Europe being a desirable destination for emigrants is a fairly recent development.