The thought of tax cuts for people who don't need them disgusts me. Capital has gotten a free-ride for long enough. I frankly don't give a damn about "small business" nor do I see it as inherently superior in any fashion to big business, because I'm not some kind of reactionary who idolizes all things small over all things large. Big business is big for a reason. We should support consolidation in the economy to increase overall efficiency and take advantage of the economies of scale that monopoly brings, not waste our time day-dreaming about poor mom and pop or the anarchist bike co-op down the street.
The only people who pay the minimum corporate tax are small businesses with virtually no income. Minimum corporate tax is not assessed on income, and generally violates ability-to-pay, but let's just pretend that people don't have rights. Much easier.
Monopoly provides nothing. Look at what happened to Rockefeller's fortune when he was forced to break up and sell off Standard Oil. At some point, consolidation becomes an irrational use of capital.