Japan has the highest life expectancy in the whole world, which is certainly a factor in them skewing so old.

If their elder care was so terrible, I doubt their elders would be the world's most healthy and long-living.

They are minor because they are ultimately issues concerning money, and issues concerning money can ALWAYS be solved given enough political and social will.

Compare, say, multiple separate groups of people and cultures sitting next to each other who may or may not like each others' company as a consequence of aggressive immigration policies. You can't just throw more money at such a problem to make all the ills go away, such problems that we can't just zap away are major problems meriting more serious concern and attention.