I agree that the IRS staff could be REDUCED..probably significantly.... but, not "abolished"... Abolished means, GOES AWAY.
Not going to happen as long as INCOME is the basis. What is income? It ain't just wages. There are LOTS of kinds of income, and they all require an intrusive government agency... the IRS.. to check and verify that we're all reporting it correctly.
Tax collector NEVER can go away so long as there are taxes to collect. But if we simplify the taxes, we won’t need a million IRS agents.
How much time it takes to check, if you made $80,000 and are in 10% bracket, you have to pay $8000 in tax. But if you had deductions for home office, driving your car for business, or uniforms worn on jobs to deduct, etc etc...you need more tax agents.