Supporting FOSS is political. It is not a hot button issue to the extent of gay rights or abortion, but it is certainly political... it only seems like it isn't because it already passed the threshold of general acceptability in our culture (it wasn't this way in the 80s and early 90s! It was a real dividing issue for the software industry).

By that same token, someday in the not too distant future support for gay rights will seem no more overtly "political" than supporting the rights of blacks or women to vote, it'll just seem like common sense. And if Google or any other company has to be "political" today to help achieve that goal, they have my full support.