Block that and KSA will fall apart within months as having hundreds of thousands of dollars means nothing if there's no access to Gucci purses and houses in London.
Instead, we see a slow progress which is painful, but may be the best that can be hoped for.
https://www.wsj.com/articles/saudi-women-drivers-face-one-la...
It hasn't been attempted. Kim Jong-un, for example, has been raised in Switzerland, dito for MANY children of autocracies, dictatorships and other detestable regimes from all over the world. Their blood money (or, in earlier times their blood diamonds) was, is and always will be welcome for Western banks.
If France and/or the UK put anyone with "Al-Saud" in their last name on a no entry list, MBS would be gone in weeks.
Anyway, levity aside regimes that will violently murder to silence critics might not to get even for bad business investments.
As for me I'm hoping to get some investment on my new grocery list tracking app that uses machine learning on the blockchain to automatically buy what you want to eat before you know what it is!
I don't really disagree with that but at the same time it doesn't really feel all that wise to whack a hornet's nest with a baseball bat. If anyone feels like taking the risk, then I wish them the best of luck in swindling them for as much as they can get away with, but playing stupid games can lead to winning stupid prizes.
Yeah, that sounds like a great idea to employ against a regime perfectly willing to violently murder people.