That's fine, but if free-market economic reasoning doesn't work for you, I urge you to look at the facts of historical record which bears out the failures and fallacies of Socialism and the successes of free-market Capitalism.
If you're concerned about the poor, historically, they've done much better in free-market economies and have suffered much more economically under Socialism. If you're "concerned" about the wealthy, why? Isn't that what everybody's trying to become - at least financially healthy and thriving? Historically, it's the wealthy who have provided the entrepreneurial advances in industry, providing real employment to do real jobs.
The point is America was founded on the God-given right to life, liberty, and the pursuit of happiness. Freedom has always taken guts bravery and hard work. There used to be no guarantees nor should there have been, other than freedom from unconstitutional government interference. That is what made our country great and why so many people people died to get here - not because of what government could do for them. They died trying to escape the clutches of government oppression, knowing first hand that the same government that said it would help them ended up oppressing them (historically, given the power, governments will always oppress). They died seeking the opportunity to live free and make a life of their own with no other guarantee.
Freedom, the heartbeat of which is economic freedom as well as religious freedom, has always been, and now is, worth fighting for and dying for.
Don’t think you understand the premise. Not taxing income for corporations or individuals is about as free market as you can get.