"the other side feels "free markets" work"
That, right there, is why the right has got to stop. Laissez-faire does not work, period, at all, ever, in the history of man. Demonstrably. Believing in the "free market" (by which their actions show that they MEAN Laissez-faire) is to believe in something that is absolutely NOT true. No one wants the government to take over or do everything. The left wants balance. The left fights to fix what is broken, in ways that have been proven to work. This isn't a difference of opinion. This is a difference of what can be shown to be correct and what can be shown to be incorrect.
You can track the economic regulation and tax history in this nation, by following the stability of its economy. The early industrial era was horrifically volatile, so much so that it resulted in the great depression. We realized that we couldn't let the economy do that, so in the 1930s, economic regulatory laws were passed, and the economy became rock solid, right up to the 70s, when we began to strip those regulations away, and like clockwork, the economy turned back into a roller coaster ride.
This is not a difference of opinion, this is right and wrong.