[vel0city]

Completely ignoring the actual question.

>> If there were five taxes of one percent each versus one tax of 20% how is the one tax somehow better?

Would you rather pay five different tax authorities a 1% tax each or a single tax authority 20%? Not asking about the morality of those five tax authorities, in this example they're all the same.

The argument is against this idea "double taxation" is something inherently wrong. In the end it's not a matter of how many different taxes actually apply to a given transaction, what matters is the tax amounts and where those taxes are going to.