There's always been a section of the population in every EU country against membership, and a significantly larger one who didn't like a lot of what the EU meant, but overall would still stay in.
Any political construct is a compromise - the EU, the UK, London. For some people that compromise won't work.
However regarding the EU, such people have been in a minority pretty much everywhere (even, with the exception of a year or two when it mattered, in the UK) and the EU countries' perception of Brexit has significantly increased support for staying in.
Public demand for the UK joining the EU is going to continue to outstrip the political appetite for talking about it because the media makes taking the majority (or plurality, at least) position impossible for politicians. Which is a curious thing to ponder, really.