Ugh, not this argument again.
There is more way to enjoy a beach / measure it worth than just through the warmth of the water.
There are many ways to enjoy a beach and its surroundings. For example the beaches in Tofino are beach hot spots for tourists, beach bums, and surfers for their scenic beauty and amazing surf (internationally known within the surfing community. Fun trivia, even the end of Point Break (the first and only real one) was filmed there).
I have been to beaches in nearly every major climate zone / biome around the world, and they all have their own unique charm and beauty (and if you are someone who only cares for where the warmest water is, well, then I feel you are missing out).
As for English Bay, it is a really nice area to relax and have fun directly next to a major city with amazing sunsets, a great place IMO (the beach is always busy throughout much of the year, with people from all ethnicities and corners of the globe).
Obviously I don't expect everyone to love these places, (and if you don't, that's fine) but list after list and tourist after tourist has shown that enough do