You mean the guy running the small business he owns, who pays corporate taxes doesn't mean anything to you? Or that all the stocks you hold in your 401k wouldn't do better without corporate taxes? There are taxes assessed on nearly every transaction and investment known to man, except perhaps for the money you stuff in the mattress but don't spend.
Yea, I know what's coming next... Well you didn't pay that tax, the corporation did. Yea, but I own stock in that company, and/or I purchase their products so the taxes get baked into the cost cake, so even if they are not a line item on the bill of sale, they are costing me. Then there is the poor small business owner (the backbone of the economy by most measures) who has to pay taxes every which way you can imagine, INCLUDING income and sales taxes who could use the money to pay for more labor, buy more materials or even pay himself more. So yea, corporate taxes matter to the individual a lot more than your average working for a pay check Joe likely imagines, and more than you are likely to admit.
You do understand that I really do not care about the "progressive" or "regressive" nature of taxes persay, they are both bad. Taxes in general are evil and should be avoided. Taxes are sometimes a necessary evil, but any tax on a transaction, discourages that transaction, providing disincentive for economic activity. We tax way to many things in way to many ways and we suffer lower economic activity as a result. We tax in so many ways that your average Joe doesn't realize just how much he's paying... That has to end.