7
63% are US citizens
Many MLB organizations have systems down in the Dominican Republic, Mexico, etc. they are similar to the minor leagues in the US. scouts draft players and if they develop enough skill, they come to America and play for the US. teams.
In the 2006 season, the MLB reported that players born outside the US made up 27.4 percent of the league. See related link for the full press release.
about a million players
Yes, there are many US citizens who have cars, but there are many US citizens (like those who are children, those who can't afford cars, etc.) who do not have cars. There are over 250 million registered motor vehicles in the US.
all of us
All were as this is our law.
156 PLAYERS
233442546677
418,500 US Citizens were killed during WW2.
Treated differently in what regard? Many US citizens would argue that, in some respects, non-citizens are even more privileged than they are. In many cases the only privilege that a non-US-citizen doesn't enjoy is the right to vote in a US election.