4. The super-rich are taxed at a dangerously low rate
This sentence is completely bullshit, income tax is progressive tax where people get taxed based on the income they earn. If they earn lower than minimum, they don't need to pay any tax. If they earn minimum salary, they only get small taxed. If they earn a lot money, they need to pay a lot tax too!
But the problem is those billionaires can evade or avoid pay tax by manipulation.
You sounds like rich people is an evil while poor people is good people, the reason why they're poor is they're not want to try hard like the rich people.
Rich individuals who own businesses can opt to receive $1 dollar salary, and that is to avoid paying more taxes. I guess you can say that since the business is already paying tons of taxes to the government, the individual no longer needs to pay that much as well but still, rules are rules, and when you are rich and can literally do whatever you want, these rules don't apply to you.
Rich individuals still need to pay taxes just like the rest of the common folk, though they are getting taxed less in terms of percentage because they opt to receive only that much of an income, so in a way they are still playing by the rules.