How are new businesses supposed to compete when their incumbent legacy competition is using billions of dollars in tax subsidies to keep prices artificially low

How are new businesses supposed to compete when their incumbent legacy competition is using billions of dollars in tax subsidies to keep prices artificially low? New Jersey may get a ton of new jobs, but they'll also be helping to harm the overall health of the market. And specifically at New Jersey's level, relying on a single employer to provide so many jobs harms the health of the local economy and community as well. Amazon is no exception to long-term business trends, and their fortunes will change. If there are eventual layoffs or even closure then all those people who are suddenly out of work will have a terrible impact both on the salaries of other workers in the area as well as whether people decide that they must move away to continue to make a living. Government's responsibility is to encourage the growth of many different businesses, so that the local economy can survive the closure of a few, and not to become overly dependent on a single employer.