I think the narrative here is wrong about remainers loving the EU at all costs. People voted to remain in the EU because they thought remaining in a large trading block and allowing freedom of movement was a good thing for the U.K.
It doesn’t mean they don’t think the EU as an organisation needs a big change and isn’t a bunch of *****.
It’s just we did quite a good job of changing them from the inside whereas now we have no say in a trading bloc that has a huge effect on our economy.