You really can have a reduction of population because the per capita economy remains the same and standards of living remain the same.
The problem is the entitlements. I got tired of trying to convince people that the budget deficit each year is false because it is accounting on a cash basis. When using accrual accounting like businesses are required to use, the budget deficit is $5 trillion dollars each year. That isn’t my number-I don’t have the capacity to figure that out. It comes from the Social Security Administration.
Those of us 65 years old now will keep getting our entitlements for a long time. And we may hang in there long enough to see the disaster we created. I am hoping our children have the nerve to default on the nation debt when the time comes.