Did I say mandatory? I meant optional! You’re “free” to die in a cardboard box under a freeway as a market capitalist scarecrow warning to the other ants so they keep showing up to make us more!
I think the key point in the post was “If ‘unrealized gains’ can buy stuff-then they’re realized. Tax them.”
Essentially, because the unrealized gains held in their stocks could be realized through a loan, all of their capital gains should be considered for taxation.
As opposed to just the assets used as collateral, that is now effectively liquid, should be taxed as realized.
I personally think we should do everything we can to disincentivize wealth hoarding, even if it’s an “unfair” or possibly somewhat broken system that does so, but it also doesn’t seem feasible as a kind of legislation you could convince anyone in the government to enact, since they’ll still be focusing on things like if it could possibly lead to a higher loss than the initial investment if they’re taxed on the gains for years, but it drops low enough to wipe out all the value they paid in tax and their gains, even if the actual price is higher than the purchase price.