I once met a woman for some short class on business plans on zoom, and she was actually taught how to create a holding and the whole loophole package to optimize taxes. I asked about the morality of such thing, and I was shocked to realize she did not seem to care at all.
The banality of evil allows some people to just get access to an easier life by not caring.
"Optimize taxes" - What exactly would be wrong with wanting to reduce the taxes you pay?
Did you ever calculate how much you are paying % wise in taxes? If you add all taxes including VAT, fuel taxes, random taxes and such you'll be suprised at the % you get "the priviledge" to pay as an employee every year.
I do not understand why you would personally care about profiting from tax fraud/optimization? I understand that it would be good to prevent this on a societal level, but no personally.
In fact, evading paying taxes in a legal way should not be an excepction, but the norm.
Stop romanticizing taxes.