If you want a place where they pour $1B in a short messages app and $30B in an app to hail a cab, the US is indeed the only place you should call home. Good luck!
WeChat - China (nearly $3B) is probably the world's most dominant messaging company.
Plus China funds games and social media very well too.
The Americans don't like to hear that their dominance is at risk.
Whereas, in some places in the EU (Germany for example being particularly notorious) you can't reliably hail or pay for a cab by digital means - because "the rules"™.