I do not agree with the on "brilliance of davem" sentiment. And I see the equivalent mentality of the people who want cars for everything and want to bulldoze everything to fit a car lifestyle.
Frankly, if MassMortorist have a different handle, I'm very willing to bet the sentiment would a bit less hostile. Because the tone and arguments to him seem to be along the lines he is advocating that cars are superior and mass transit should go die in a corner. If you read his past posts, you know he does not push for that and he is not saying that now.
In short, making points such as transit is underinvested and thus people are forced to use cars rathers because it is the best option is a moot point. Because both sides agree on that point.
The point of contention is the tone towards cars and MassMortorist is trying to remind that cars have a place. And not saying European/Asian-style mass transit does not belong here. Yet everyone seems to be counter-arguing that is the point being said. Making points how parking will destroy Boston, massive pollution, and people drive cars because transit is are not given the equal investment. Yet, I think everyone here would agree our public transit system needs a real investment and no one here is arguing for more highways or parking lots.
I also have one other point I need to make. I agree with DaveM (as would everyone else here I presume) that transit is under-invested. That many people take cars not for one of the intrinsic qualities of cars, but only how the system is setup. But I cannot agree with the encapsulation of the point by the commute of the Seaport as a product of pure underinvestment towards transit versus over-investment towards cars as long the measuring stick is travel time. If the Seaport (with the rest of Boston) gets a real investment (so lets say actually heavy rail stops and everything), travel time will still hold to a disadvantage unless we re-centralize the system to the Seaport. Of course, if transit time weren't so bad, then other qualities intrinsic to transit can begin make up for the dent in commute time. But the discussion seem to be focused on travel time, so it still needs to be said.