Even regardless of their motives, this statement is begging the question. The only way it is relevant is if that percentage (it's actually ~40%, if we're talki

Even regardless of their motives, this statement is begging the question. The only way it is relevant is if that percentage (it's actually ~40%, if we're talking federal income taxes) is enough for them to be paying. So the argument is that they already are paying enough because they're paying enough. It's circular and therefor meaningless.