If you can’t beat them, join them. That seems to be the approach of some cannabis companies as the hemp industry has cut into their market. One of the largest cannabis companies in the country, Green Thumb Industries, announced Friday that it will open a hemp products store selling edibles and margaritas at the Salt Shed concert hall in Chicago. The announcement comes days after Illinois lawmakers tried and failed to regulate hemp products, leaving the industry largely unregulated and continuing to grow quickly.