How much time do you spend in Germany?  You do realize that like Japan, their population is declining?  You do realize immigrants have made the US and Canada great.  Even Britain.  And your solution is to deal with an aging work force, higher health care costs with no new workers to pick up the slack?  You will then complain about higher taxes to pay for the goods and services you expect or you will have lower services such as in Japan where families provide food for the person in the hospital, not the hospital.  Careful what you wish for.