Is this really about taxing multinational companies or is this about establishing a "minimum 15% corporate tax rate" for every SME and mom and pop shop?

TFA says that Ireland is going to accept the change: atm they've got a 12.5% tax rate.

What about Hungary? Corporate tax rate at 9%.

Once this shall be in place, the one sure thing is this "minimum 15%" is only ever go up, never down. There won't be any incentive ever to make it go down as there won't be the risk of companies moving abroad to pay less corporate taxes.

And this says nothing about dividends or income taxation, so you'll end up with SME owners paying "minimum 15% corporate tax" and then on top of that 34% dividend tax, for example.

I really wouldn't be surprised if this was sold as "tax the FAANG" while ending up trouncing the SMEs owners a bit more.