Unfortunately, free trade has proven to be not so free. I fear that there will always be a shit token in the way. These ETFs are an example, not redeemable in kind.
Discussion
If sound money is a choice then shit tokens will eventually only be a path to the exact sort of hell people deserve. Someone is always going to try to sell people softdrinks or some other drug packaged as though it is harmless, if we can create a world without govts running protection for the scammers then things will be significantly better.
That is the dream. I am optimistic but typically cynical. I'm a Londoner