You're spinning their POV. Their POV is, harder taxes = less taxes, easier taxes = more taxes. I'm not saying that will work for them but I can see it as defendable idea.
I think many of them would also like to see a ban on auto tax deduction. Their POV is if everyone has to send a check to the government they'll vote for less taxes where as with auto-deduction, most people just look at their after tax income and ignore the rest (and see their "refund" as a bonus which it isn't)
I think I'm mostly on the "simpler is better" where simpler should be "get the tax code to fit on 2 pages of 10pt single spaced letter sized paper. Something simple like "+0.25% for every 1k over 10k up to 50%" the end. I'd be curious to know which country has the simplest taxes