...that was not an argument in favour. It was simply to point out its achievable.The government could do a lot of things. You could use that argument for like anything.
When you asked "why would X happen when Y doesn't happen", it's perfectly reasonable to respond "both X and Y could happen".
Those rates could be lower or higher than the US's. If they're lower, then foreign investors are advantaged, no?No, because they go by their own country's taxes, which could be more or less depending on the tax laws. The US unrealized gains tax would just be to the US since that tax is very rare.