Why do so many people dislike English cuisine?!

Because it's offal.

If you try some of the traditional stuff like blood pudding, kidney pie, or tripe it will turn your stomach.
Melton Mowbray pork pies are made in part from pig trotters (feet). Pressed and sliced ox tongue remains popular amongst older UK residents for use in sandwiches.

Fish and chips are great as is standing rib roast and Yorkshire pudding, but those have been adopted in the US. I have never been to the UK and I grew up eating those.

They are fed dickensian stories and fifty year old propoganda, and still think London is bathed in fog.
And they thing English food is boiled cabbage and old fish.

Really out of touch, that's why.

And if you're talking about Americans, they really don't know what to do with food that isn't loaded with sugar and grease.

It's not one of me I think there are some great meals out of the entire UK, though I would prefer a Sunday Roast Lamb than Beef
I mean...what can be nicer than the humble "Bangers & Mash" and I am not from the UK, but from the other side of the world in NZ

You'd think with combination of England and India and the British navy they would have shipped in some really interesting spices and used them once and a while.

Probably because it's not fashionable at the moment. I like it.

English food is notorious for being bland. My father put it this way, "it tastes like dirt."

They just probably aren't used to it

English cuisine is starchy, boiled, or fried; what's not to like?

I myself, find most English food, much to bland