If $Bitcoin was truely digital gold, why does it fall every time fiat is in trouble and precious metal (gold)…

If $Bitcoin was truely digital gold, why does it fall every time fiat is in trouble and precious metal (gold) rises? The bitcoiners are selling us their bags, institutions are trading Btc up and down, in the end noone with conviction truly believes BTC is like gold. Saylor believes in price going up as Bitxoins only use case. I can see a lot of meaningful use cases for Ethereum though