Even if a specific type of debt load is not necessarily a liability for personal profit, it is assuredly someones problem eventually...
The theory debt doesn't matter only applies to 0.04% of the population dodging tax burdens with structured financial instruments. The interest rates should be set over 14.2% (and we know it), as aristocratic gambling-culture has stolen living-standard value from great-great-grandchildren not even born yet.
The poignant question is 'could anyone do anything about the trends', and the short answer is a simple 'No'.
https://en.wikipedia.org/wiki/Tragedy_of_the_commons
Have a great day, =3