Tesla is facing increased competition, its just not really noticeable in North America. 
Tesla is the #1 EV brand in the world.  The next big brands are all Chinese with maybe Rivian who is high end
.  Chinese firms have played massive catch up, and sell in big numbers for less in China, Asia, Middle East and have entered Europe.  They still don't sell in North America so most just don't know its happening.  
Even the biggest Europe EV company, Polstar, is owned by the Chinese.
Tesla now sells about 15% of the global EV's.  As of December over 40% are now from Chinese firms with biggest being BYD.