[collaborative]

It took a couple world wars to learn that only looking after your own interests leads to confrontation

Using your country's priviledged position to your advantage creates grievances and division

Just picture a world full of embargos as retaliation for tax dodging. Many countries could decide it's not worth keeping an open border (with flow of goods) with a country that tries to attract companies (that sell in your country) with low taxes. A trade agreemeny (EEC etc) rests on the good will of its signatories. But offering your country as a tax haven breaks this relationship. The only reason it has taken this long to get this type of agreement going is that the underpriviledged countries lacked democratic pressure. No healthy democracy would allow the flow of untaxed goods from third countries

The democratic will is slowly building up, and if it is denied it will lead to confrontation and overall waste of resources. It is in everyone's interest to agree to a global minimum tax rate (but it requires vision)