For at least the last 33 years of your country’s history, that is since Reagan, there has been (talk of) ‘tax reform’. Please kindly list its achievements.
I’m not listing anything that has to do with the Income tax.
You can make a list for yourself because I have nothing to do with Income tax reform.
I only deal with tax reform by the FairTax:
http://www.fairtax.org/site/PageServer?pagename=FAQs