Sorry but your recent first hand experience isn't compatible with the phrase "English people have famously bad taste when it comes to food". One person's experience doesn't usually make something famous.
I agree with the GP that this isn't a fair characterisation any more.
Like it or not, it's a prevailing stereotype in the US. After a trip to London a couple years back, I know that's not true, but the stereotype is going to take a long time to wear down.
Not arguing that it's not a stereotype that persists. I'm agreeing with the poster that said it's not a fair characterisation any more, which was then disputed.
Greggs is immensely popular and does huge turnover (£835m in 2015). It is full of greasy, salty, sugary crap. Others in top 10 revenue include KFC, Dominos, Pizza Hut, Subway, Nandos (tasteless, pre-cooked chicken, overpriced, small side portions)
