I think what you're saying is that the so-called "class wars" would escalate as the wealth gap, and the resulting resentment, increases. I'm not sure how a mass refusal to pay income tax would catalyze such a thing, though. If anything, the business owners and their employees would be on the same side, and the common enemy would be the IRS and government figures who are paid on the taxpayer's dime. Exceptions maybe for business owners/CEOs with government contracts.