The symptom is plainly that people and groups of people (corporations) with very deep pockets have vast access to and influence on all levels of government, and influence is a zero sum game so that comes at the expense of the mythical "average" citizen.
The Fair Elections Now Act is the most direct and obvious way to mitigate that corporate influence.
I think that it also undermines the freedom of speech of those who have influence.
So, the extent of my understanding/analysis at this point is that essentially what we are looking at is a decision between the welfare of American democracy vs the principles upon which it was founded.
I know the hard-line libertarians will decry me for that sentiment claiming that the two never diverge, but I don't see how anyone can deny a) that the corporate influence is disproportionate to the numbers it represents b) rarely aligned with the interests of the population.