This is just a set of political predictions. There's no reason such policies must exist in the future, except for the wealthy people pushing them. For example

This is just a set of political predictions. There's no reason such policies must exist in the future, except for the wealthy people pushing them. For example, a country could pass some laws: "For all corporations over 10 employees, no more than 3% of their revenue may go to paying, directly or indirectly, independent contractors. Fines for violating this law are infinite. No more than 3% of employees may be scheduled for less than 40 hours per week. Fines for violating this law are infinite." And boom, we've eliminated the phenomena of part-time, work on demand, transient workforces. Companies would quickly adjust to a new reality of 40-hour full-time employees. They would start doing things like investing in training, to make sure they have the best employees possible. This is a policy choice, not some inevitable law of nature. Currently the people making the policy are choosing to promote part-time and work on demand. That's not a law of nature; that's politics.