Because in America, that statement is so heretical and antithetical to what the average American thinks America is, that most people probably wouldn't even be mad at you for saying it: They'd think you were legitimately unwell/insane.
It's on the same level as saying "I hate liberals and am not conservative".
One thing to point out is that politicians only care about small businesses when they want to pass a law benefitting small and big businesses. When it's big business and not labor putting the squeeze on small business that's just the market