It's difficult to defend that kind of position when the only viable choices available range from bad to worse. By any rational standard, as someone a little older than the Millenials described in this article, I should be well off -- degree from a good university, work in tech industry, run my own small business these days, etc. -- and yet I have essentially no chance of buying a viable long-term family home in the city where I live.
It doesn't make a lot of difference how carefully I save or how hard I work to grow the company revenues, because we simply don't have enough houses to go around. That means the property bubble just keeps on growing, and those of my parents' generation who bought their first home multiple decades ago are now buying up the new ones as well, to use as investments and let out as rentals. They can make more money doing that than all but the most successful and fast-growing business can generate or the very highest paid jobs will pay, and it's effectively passive income most of the time, so the cycle continues with the gap widening by the day.
The next generation are even worse off, with pressure to have a degree to get just about any kind of job these days leaving them with tens of thousands in student debts before they even start their first job and in most cases doomed to spend much of their 20s just trying to keep up.