After dissatisfaction at my (then) current place, he promised challenges and warned against having side projects. So, today, I was fired for lack of commitment

After dissatisfaction at my (then) current place, he promised challenges and warned against having side projects. So, today, I was fired for lack of commitment, working on other things, and disclosing company trade secrets. I was warned of the complex legal issues my actions would have created had I been working at a larger company. So, it's not enough to work...you must drink the kool-aid and forsake your own free time and creativity. Fuck startups who act like this.