What Trump means by Bitcoin mining is America will be a place where you can start a Bitcoin mining company and not worry about government interference or confiscating your Bitcoin. 
Try staring a mining company in China without government involvement 
America = Freedom
https://image.nostr.build/0abae63484380df5fdb465cca38e0b23903a132825f23484a685a4cc82e5dddc.jpg
#Bitcoin 
 

 America isn't as free a place as it used to be. The patriot act. Surveillance by the police and dhs. Gun confiscation.