I'd agree you can get by without speaking French, it's more of a challenge but you can do it. I lived in Holland for awhile too and it's even easier to get by without Dutch there than it is to get by without French in the 514. I also find you need a thick skin to get by Anglo only in Montreal. People can be down right rude and hard to deal with if they don't see a modicum of effort. For what it's worth my parents both eventually left because it's just too hard to advance in nearly any career in MTL/Québec if you don't speak French.
My main point was that Anglos are still less than 20% of the cities populace. And Francos are still a majority