Isn't there some danger that you are over-generalizing from an industry where there are exceptionally low barriers to entry to a global trend? What if you want to make a new automobile, or even worse, a new airliner?
However, I think there is another trend that reinforces what you say here. Previously there was a strong incentive for risk-averse people to work in large corporations. I'm a risk-averse person and I once worked at a large corporation. With the change in organizational behavior so that layoffs have become a first resort action, instead of an action only appropriate in desperate circumstances, there is little risk-aversion benefit to large organizations. So other than health insurance, large corporations have become a generally inferior class of employers. This is true even if you are not entrepreneurial.
However, I think there is another trend that reinforces what you say here. Previously there was a strong incentive for risk-averse people to work in large corporations. I'm a risk-averse person and I once worked at a large corporation. With the change in organizational behavior so that layoffs have become a first resort action, instead of an action only appropriate in desperate circumstances, there is little risk-aversion benefit to large organizations. So other than health insurance, large corporations have become a generally inferior class of employers. This is true even if you are not entrepreneurial.