He's just bitter. It's clear enough that J-20's are everywhere is referring to production rate, presence, and the squadrons and bases receiving it. Then the uncalled for remarks on borders etc again showing bitterness just from a relatively innocent remark about how many places are receiving J-20s.
I suppose Chinese guns are within the US while F-35s can't venture anywhere near China without falling into the ocean or getting shot down. Not that they even try to get close to China. Chinese products however are everywhere
It's one thing to chest thump because F-35s are sold everywhere and another to allow something so pathetically trivial to be used as a backhanded remark. Chinese military weapons sales are also everywhere from Serbia to Saudi Arabia, UAE, Thailand, and even Argentina. There are Chinese weapons sold to more countries than F-35 partners. So what does that say? lol still nothing but two can play at those comments.