If a guest columnist for a major national newspaper is to be believed – and I hope he is – Boston is out of the running to be Amazon’s second headquarters city (HQ2). This would mean that the old, seldom-used Suffolk Downs horse racing track, the prime intended Boston location for Amazon’s HQ2, can be redeveloped in a better, less intense way for East Boston and Revere, and for the state as a whole. The proposal by the state, city and a private developer to build Amazon’s H2Q at Suffolk Downs includes housing, hotels and open space, but it is primarily about eight million square feet of new office space and a technology-driven business operation requiring the services of approximately 50,000 employees. Creating jobs is, as it should be, a governmental priority in all times and seasons. As enticing as H2Q at Suffolk Downs seems, however, there’s something scary about having so many jobs materialize in one swoop at a 161-acre site amidst densely populated neighbor...