Chad, my maternal grandmother (I've never met my paternal grandmother -- died before we were properly introduced, but I digress) is quite similar -- basically throwing a fit when an American, Muslim government official was sworn in on the Koran instead of the Bible
-- that's basically the tip of the iceberg.
Anyway, I digress to the topic. I do not nor did I ever think Tobias is gay, not that I'm against homosexuality but I think it is not in his character. Besides, KAA didn't say he was, like JKR outted Dumbles.