Don't worry guys!
This unrealized gains tax will be meticulously constructed by the class-leading legislative engineers in the Democratic Party to capture the nuance and mitigate second and third order effects that would otherwise lead to negative unanticipated consequences. This thing will be constructed as the Swiss Watch of tax legislation so that it will only do the thing we intend, with no downsides.
Just look at the quality of legislature we have constructing it! How can you not have absolute faith in this team to not utterly cannonball the American economic engine and speed-run us on the Argentina arc.