Apple pays an effective rate of 21% on foreign earnings, 35% on income earned from cash invested outside the US and over $10bn in corporate taxes overall. That doesn't include property taxes, payroll taxes, VAT, etc, etc. They are the biggest tax payer in the world.

The conventional view is that Apple pays no tax, Ive seen that asserted on HN many times, but it's just flat out not true. If you wan to say the above isn't enough, sure, fine that's an opinion you're entitled to hold. I don't even necessarily disagree, I think there's a reasonable case to be made that we are excessively incentivising the concentration of capital but that's a question for voters and politicians not individual companies.