Color me skeptical.

Any examples of this in practice?

>What, then, is the missing piece? A major factor that has not received sufficient attention is the role of public policy. Throughout most of the country’s history, American government at all levels has pursued policies designed to preserve local control of businesses and to check the tendency of a few dominant cities to monopolize power over the rest of the country. These efforts moved to the federal level beginning in the late nineteenth century and reached a climax of enforcement in the 1960s and ’70s. Yet starting shortly thereafter, each of these policy levers were flipped, one after the other, in the opposite direction, usually in the guise of “deregulation.” Understanding this history, largely forgotten in our own time, is essential to turning the problem of inequality around.

...

>Sometimes referred to by its supporters as “the Magna Carta of Small Business,” Robinson-Patman prevented the formation of chain stores even remotely approaching the scale and power of today’s Walmart or Amazon by cracking down on such practices as selling items below cost (a practice known as “loss leading”). The legislation also prohibited the chains from using their market power to extract price concessions from their suppliers, Similarly, the Miller-Tydings Act, enacted by Congress in 1937, put a floor on retail discounting, thereby ensuring that large chains headquartered in distant cities didn’t come to dominate the economies of local communities. This did not prevent innovation in retailing, such as the emergence of brand-spanking-new supermarkets to replace small-scale butcher shops and green grocers. But into the 1960s, these and similar laws would ensure that no supermarket chain would control more than about 7 percent of any local market.

It's not only him, look at the entire GOP, and what forces are at play to keep these people in place.

The people currently in charge are there to protect historic interests/positions and they know they will lose them forever in a fair election. Because most of the country has moved on culturally.

The only thing that's changed is that people are pretending that it's new and unprecedented, as a way to garner more outrage.