In history there were times when a country's currency was suddenly devalued 50%+ to solve its economic crisis. Examples: Israel in 1980s, Thailand in 1997, and Argentina in 2023.
Suppose one day US declares US Dollar is devalued by 50% to solve the debts crisis. What would happen to the BTC ETFs at that moment? Will the ETFs double their USD prices instantly to maintain their market value in Bitcoin, or keeps their face value in USD (lose half of the BTC value)? For example, would FBTC double or remain its price in USD?