Because at last the English are starting to show some independence. We chose not to be part of a homologous structure in Europe and instead forge ahead shedding ourselves of the bureaucratic encumbrances Europe entails. Sadly not all our nations agreed.
The French don't like us cos we saved their sorry asses in two world wars and they've never got over it!
We chose to be out of a homologous structure? If by that you meant that we could not be English in the EU, that's rather odd. All the other nations have kept their individuality. France is very specifically France, Latvia is Latvia, Germany is Germany etc. All very different. Presumably the tourists that came here see our country as separate and different. We're now separate and different in a very unpleasant way.
"Sadly not all our nations agreed." Indeed, Scotland and NI saw how they benefited from EU membership and voted to preserve our EU membership. Now many of the Welsh and Cornish are also seeing what the implications are for them. Some research shows that the leave vote in Wales was mainly from English incomers.
I'd like to remind you that there was an amendment calling for the Referendum Act to have a triple lock so that all the nations had to be in agreement for such an enormous constitutional change to take place.
That amendment was rejected on the grounds that the referendum was only advisory in nature.
Now the strong feeling in Scotland is that they have been dragged out against their will and Scottish independence is looking to be a very real future.
The Good Friday Agreement has been disregarded and seen as irrelevant. Yes, the border communities are angry and justifiably so. How will this pan out? Goodness knows. Seeing a valuable peace agreement trashed and disrespected is not, very much not, good.
We saved the French's sorry asses - oh my. This is just the superior attitude that feeds much of the anti-English feeling. Um - French Resistance, the contribution of the US, the Russians ????? But no - 'England won WW2 all on our own'. Give me strength.
As for bureaucracy, we're now seeing how much bureaucracy the EU saved us. The difficulties of trading with our nearest neighbours as a non member state has reduced our exports by 68% and our imports are suffering. This is without the full implementation of the border controls that will come in next year.
OP, sorry to derail but this post was such a clear example of why the English are not universally loved.