Oh, no! My argument is just that conservatives like to argue that lower taxes on the rich will be good for the economy and higher taxes on them will be bad. History clearly proves this wrong.
However, I will say that they both (the "both" being higher taxes & stronger economy) fall back to use of liberal economics.
And we've talked about the progressive tax rate thing for so much and gotten nowhere, I won't start down that road again, but I will mention one thing. You talk about truths being in the center of two extremes. I agree completely. However, my views aren't extreme. (I am kind of a hot head, I base my opinions off of facts, but I won't deny that.) The Democrats and Republicans don't represent two extremes. Pure socialism and pure capitalism are the two extremes. The Republicans are a lot closer to being extremists, but the Democrats are in the center. They want a mix of socialism and capitalism, which is the way to succeed. Just something to think about.