The biggest challenge with an "owned wealth" tax is how do you actually measure it? It's easy if it's held in cash in a bank, but most billionaire's wealth is is land, property, and how do you measure the value of a Picasso stored in a vault if they can slip the valuator a grand to say it's worthless?
Closing offshore money transfer loopholes, heightened tax on luxury spending (100% VAT on private jets and yachts?), making fines income-based, and treating capital gains the same way as income, are all more achievable.
I'm totally on board with the sentiment though.
"Key franchises"? And they don't think WW is a key franchise? Out of all their films from the past few years, the WW ones have been some of the best. If they don't want to do anything with it, they don't deserve the IP.