I honestly don’t think you appreciate just how big the gap between the top 1% and the rest is. You could absolutely, 100%, no questions asked, raise that sort of money from people who “are not me” or you for that matter. It’s this very consistently perpetuated myth that has allowed the situation to develop the way it has in the first place.
Since 2020 there has been around $42,000,000,000,000 worth of new wealth created globally. Of that $42,000,000,000,000; $28,000,000,000,000 has been captured by the top 1% of people or around 66%. That’s reflected across nations. In the UK the number of billionaires has increased by over 20% over the same time, and those billionaires have seen their total wealth increase by over 1000% since 1990. We now have a situation in the UK where 68,000 people control enough wealth to eradicate the entire UK national debt of £2,400,000,000,000 and STILL have enough money left over for each of them to have £15,000,000 (that’s more than someone on £30,000 pa will earn in 500 years by the way).
You cannot seriously sit here and seriously argue that a) this is a good or desirable situation to be in and b) that those poor UHNW individuals can’t possibly afford to have some of their wealth removed.
And this idea that if you try to recapture some of that wealth and redistribute it to the population, they’ll all just leave is also complete nonsense. Only about 5% of UHNWI relocate after they become successful and 84% of all billionaires live in the country of their birth. Yes, the Laffer curve provides a theoretical representation between taxation and government revenue but the impact of tax rates on UHNWI differs massively from the impact on other income groups due to their unique financial circumstances and ability to take advantage of tax planning strategies. Policies that seek to ensure UHNWI’s pay more into the system will not result in a mass exodus, especially if you implement said policies properly.
Just look at America, an American UHNWI (and all US citizens for that matter) is required pay US taxes no matter where they reside in the world or where that wealth is earned. If they want to stop paying US taxes, they first need to renounce their US citizenship and deal with all the implications that incurs (especially when trying to run a business in the US). Even then the US have inserted specific clauses in their tax law that seeks to ensure anyone who does relinquish their citizenship for tax purposes may still be subject to certain tax and reporting obligations including being subject to an exit tax as if they’ve sold all assets and being required to file certain tax returns for up to 10 years.
The net result of that policy is that so few UHNWIs have left America that it doesn’t even register. A similar policy in the UK would take care of the tiny portion of UK citizens who would want to leave to avoid tax.