This is such unadulterated bullshit. The purpose of a 30-year fixed mortgage is to build up equity over the course of someone's working career such that when it comes time for them to retire, they own their primary residence and only have to pay property tax on it until they die. This allows people to retire on a fixed income less than what they earned in the workforce, enabling their nest egg to actually BE a nest egg, and then also allows them to pass that property to their heirs, allowing for the beginning of generational wealth, if not the continuation thereof.
If you rent for the same period of time, you piss away literally hundreds of thousands of dollars of home equity which you and your heirs can benefit from. But let's piss all over the greatest tool society ever created for creating generational wealth, because it's "capitalist," and that means it's icky.