Are we not rapidly trending thither in the west as well?

Japan is only in economic decline, we in the west are in a societal decline, we just lie to ourselves that we're not, due to the fiscalisation tricks we employ to pump up bullshit metrics like GDP graph and the DOW(cough Pam Bondi cough), that only benefit the top 10% asset owners, as if that means anything to the average city worker who lives paycheck to paycheck, has six figure debt, lives surrounded by homeless people and hears gunshots at night in the background.

The economy != society.

I am eastern european and yes we do too but not to such extent.