The countries you mention pay employee taxes and VAT in the countries where they operate (employ or sell). This is huge in comparison with the profit tax, so op

The countries you mention pay employee taxes and VAT in the countries where they operate (employ or sell). This is huge in comparison with the profit tax, so operating from Luxemburg is shaving a few percent of the overall total, nothing more. Each other state gets their part in full. What California does is very, very different.