Don't see bitcoin as mighty like you (yet), it's a different system that indeed has several advantages. But i still consider gold better.
Maybe with the current situation, high tx fees and slow confirmation time doesn't look like that bitcoin will take over the monetary system. But for me, even if bitcoin becomes the giant it can be, it still can't totally eliminate fiat but will go hand and hand with it. Gold is better as store of value and hedge against a worldwide crisis.