costa del sol is ruined
Being particularly keen on Mediterranean flora, I would say that much of the Costa del Sol has been ruined by the tourist industry, a tourism industry that (correct me if I'm wrong) was started under Franco. Littoral habitats have been destroyed under concrete, and even more is still threatened.
It makes me sick that many Brits cant be bothered to learn the lingo
One of the reasons I've never been particularly tempted to go to Spain. A neighbour of mine has a son who lives and works in a fairly touristy part of Spain. He speaks fluent Spanish and runs a hairdressing business, catering for both Brits and Spanish people. So some DO learn the language and integrate, but this chap does print two sets of business cards: some in Spanish, some in English for all the retards out there.
My guess is that most of the ones who are going back r the ones who never managed, or never tried, to get used to the system in the UK and who've always kept a foot back in Poland anyhow.
Some will most certainly those who thought it would be handed to them on a plate but then failed. Others will be those who have done well, picked up some new ideas whilst abroad, and will return home with a fresh look at life and work in Poland.