Mr. Trump blandly waves off his income tax scam by claiming he already pays lots of different taxes already, and shouldn't be burdened with a trifling thing like the income tax. After all he pays taxes at the gas pump, whenever he goes out to a restaurant, and sales taxes on all those expensive suits and ties.
Of course, we all pay those taxes right along with him; the difference is we also pay our income tax.
A lot of Trump supporters make too little income to actually pay taxes, so it may not bother them he doesn't pay any income tax.
One thing these debates do--they eventually illuminate some part of a man's character. We can not really know these people on stage, but we can know something about them.
What I can see in Trump is out there for anyone to see. If you don't see it, it's because you do not want to.