Owning that much of a company that is valued that highly is still damaging to society, even if it isn’t liquid cash. Even putting aside their ability to take out loans with the shares as collateral, if the company is really worth that much it should be owned by a larger number of people with each taking a reasonably sized share to ensure that decisions are not made selfishly.
Taxing unrealised gains also hurt working class people dabbling in the stock market to try and improve their circumstance. IMO once you reach a net worth of $1B you get a pat on the back that you won captalism, and a 200% tax rate on anything beyond that to force you to give it up. No one person should own and control so much of a company if it truely has so much value, divide it among those that created the value i.e. the employees.
Northern Ireland is a little different, but if any of the others want a hope in hell they’d need to join the EU, as they’d need to get grants to replace all the tax money generated by London.
This is where NI comes back in because you may have noticed having a land border with no infrastructure is a pretty massive issue for EU membership.
Scottish/Cornish independence is driven by the same blind nationalism and self-exceptionalism that created Brexit, as well as the same sentiments of ‘something has to change, might as well be that’. We need to stop this isolationism and embrace the union in a way that works for all the devolved nations, as well as push Westminster for a serious rejoin conversation for the whole UK before the next GE.