You're projecting current developments into the future, ignoring that things change on the way there. If your expectation is that everything has to stay the sa

You're projecting current developments into the future, ignoring that things change on the way there. If your expectation is that everything has to stay the same: then yes, alarm bells should be going of. For 40+ years already considering pollution, climate change etc. But labor has gotten less important with every step since the industrial revolution, objectively speaking the shrinking nations will have a lot less issues medium/long term then the ones "restocking" via immigration