Taxing unrealized capital gains, as proposed, will be an impossible tax to implement due to fundamental legal challenges, specifically concerning the 16th Amendment and past Supreme Court rulings requiring an actual transfer of rights for taxation.
"taxing unrealized capital gains is going to be an impossible tax the Supreme Court previously ruled that under the 16th Amendment there must be some actual transfer of Rights before Congress can even tax appreciation is income and it'll be a massive waste of resources for everybody involved if they actually went through with this"