You're an idiot if you think competitors don't establish markets based off their competition. That is the basis of economics and literally the reason why there is more than one video game company. You're also a bit clueless if you think that those people won't be able to find jobs at all those competitors you just listed.
Maybe if less keyboard crusaders like you were taking economy classes from Trump college we wouldn't have to repeat it 11 times for you to understand it.