You don't think he'll impose tariffs? In his previous presidency he did, I don't see why this time it would be any different.
He will definitely try but he will also be kicked in the face with the new reality of this world. We are in Word War 5 now (3 was the Cold War between US and USSR, 4 was unipolar world with US waging War of Terror on the world) and today any US aggression will be met with retaliation.
Take the recent hits exchanged between US and China.
Basically US puts restrictions on semiconductors exports to China and China retaliates hard by banned all rare material exports (gallium, germanium, antimony) that are required in manufacturing semiconductors to US.
Or the situation in Syria. The moment US backed terrorists moved in on Syria and destabilized the region which needs stability and security for Chinese future ground based trade route (Road and Belt thing), the Chinese military retaliated by moving in on Taiwan which is their sea based trade route/alternative.
I don't know if they'll invade now but look how that escalated quickly in retaliation to what US did in Syria. They say that is the largest naval deployment by China in decades.
I just don't understand why this hasn't happened already. Is it ignorance, or arrogance? The only justification to this is that they don't want to make it too apparent that they're de-dollarizing themselves. (Dumping their reserves for bitcoin would be the equivalent of saying that the US dollar is worse than bitcoin.)
Because it is easier said than done.
Governments want full control, something they can not have if they use bitcoin. Not similar to when they print their own money and have their own centralized payment system like SWIFT or BRICS-Pay.
Most importantly they can't control the price of bitcoin due to its volatility, not to mention bitcoin is still small. For example we can't expect China to put their $3.2 trillion foreign exchange reserves in bitcoin that is only $2 trillion big and has a history of big crashes like -85%.
That makes it slow...