I think the main point of contention is rather than having dependable jobs were moving towards less steady employment. Which both makes it harder to live and harder to move up in the world.
Even in the corporate world steady income and steady jobs are disappearing in favor of contractual or managed labor jobs. It makes it harder to make decisions like buying a house, starting a business or other avenues of upward mobility.
I think being mired in non steady labor without any confidence of long term saving and stability makes it harder for a larger percentage of the population to try and build businesses or embark on other endeavors which is actually not long term beneficial for the economy.