The international order. Nearly all countries are fully signed up to the United Nations. The ones that are not are in effect rogue states. North Korea being one, and North America - where I am referring to the US.
There is a moral imperative that is reflected in the UNDHR. The Americans wanted to chair the table, but then didn't ratify the agreement.
Apparently it's more important to endorse the unlawful killing of 50 000 of their own citizens by gunfire each year. The USA protects wealth and not people.
I've met people like you before who want the benefits of the welfare state, but try hard to excuse themselves from paying their own contribution, citing nonsense like Laffer curve bollocks, and threatening to leave the UK for lower tax regimes. They also consider themselves patriots and paint Union jack images on their private jets.
What you advocate is indefensible.