Either you do not understand the straw man fallacy or you missed the direct refutation. 
 In case it's the latter, I'll clarify: 

The truckloads of money we see flowing into our elections since the CU decision ("free speech"?) from corporations ("people"?) inarguably increases their influence.  Corporations and the uber-wealthy already have a disproportionate amount of influence.  In contrast, you and I now have about zero influence on what becomes public policy:

https://www.cambridge.org/core/journals/perspectives-on-politics/article/testing-theories-of-american-politics-elites-interest-groups-and-average-citizens/62327F513959D0A304D4893B382B992B

You claim it was a good decision, but give nothing to support your position.