I like the concept of a flat tax, evenly applied against all income groups, including corporations. For example, ten percent. Period. No shelters, no tricksey offshore hiding, no loopholes. From my perspective, this is tax equality because everyone is taxed equally.
In terms of raising income nationally, we'd go far by taking the profit out of higher education and healthcare. If education is available to all, we would likely see higher rates of education, innovation, and income...which leads to greater tax revenue.
Unfortunately our government isn't accountable to the people, and is instead significantly encumbered to players in the military industrial complex, banks, and very wealthy special interest groups. They simply do not represent the people. I'd love to see this change, yet I have no idea how. Do I trust the government with my tax dollars? No, not at all but I'm not interested in going to jail for not paying them, and I can't afford expensive lawyers and accountants to slog though thousands of pages (millions?) of tax code so that I, like the super-wealthy, can find ways to avoid paying my fair share. Nor can I afford to sponsor potential elected officials who will further my own wealth-preservation initiatives and legislation that protects only me, and few else.