I'm no supporter of the current federal government, leader or cabinet.
But these points have little relevance.
Public drunkenness laws are a state matter, nothing to do with the federal government, have been in place effectively forever, and these days are only ever enforced against people who are being violent or damaging property. They're hardly controversial.
(If you're talking about recent NSW lockout laws, I can agree these are stupid, but they have been implemented and applied as they were designed).
Your attack on the prime minister is grounded in religion, which is not cool.
The robo-debt collection scheme was obviously poorly implemented, but was part of an effort that began several years ago to use technology to make government more efficient. It has since been reviewed and reformed, a process that continues.
Regardless of which political party you prefer, or even which system of governance you prefer, governing is always a case of managing trade-offs and competing virtues, and can only ever be an effort to achieve the least-worst outcome, never an outcome that pleases everyone.
Throughout the world and throughout history, seeking efficiency and fairness in the taxation and welfare systems is about the most difficult thing governments have to do.
None of this means the tax laws under discussion can't be drafted in such a way that they accommodate the thing you're talking about.