Sorry, but this deficit it's pretty unique to Spain. There is no country in Europe with this level of immigration.
According to your argument, the answer to when to build is a good moment to build is "never". I can't agree, and there are counter examples too. The mass rural to urban migration happened less than 60 years ago, and the answer wasn't "do nothing".
According to your argument, the answer to when to build is a good moment to build is "never". I can't agree, and there are counter examples too. The mass rural to urban migration happened less than 60 years ago, and the answer wasn't "do nothing".