With Trump, you never know if he (yet again) mixed up some of his favorite dictators (i.e. in this case, the leaders of China and North Korea), or if he thinks North Korea has 1.4 billion people (because he’s generally ignorant of… facts).
Yep, and more than that, he confuses being ruthless with being “smart.” He frequently makes it clear that he thinks their ability to stay in power (by, say, murdering the opposition) is proof that they’re “smart.” (Which is also telling - and disturbing - given how Trump wants to believe he’s smart…)