Because this is about the EU and no one likes egoistic thinking. And we all know that was the reason for the Brexit, even if it didn’t work out well. 🤡
And as you can see other non EU countries are no included as well.
And the Swiss and Lichtenstein are good partners with the EU for decades now.
Why don’t you try to fight for better bilateral relations with your fellow Europeans, in the UK instead of blaming other in the internet for your misses?
We all know the reasons for the Brexit, and it really doesn’t reflect well on the UK. Xenophobia, egoism, populism, which many have been only too happy to be blinded by, and a few trifles in return for many positive things.