This is the main guy the film "Lord of War" is loosely based on (with several other gun runners for inspiration).
If you know how Hollywood received that movie for slightly criticizing the US in literally a 2 minute ending, then you pretty much know why the USA only cares if he starts selling to their current targeted enemies.
They wouldn't even bother to report on him if he started selling to the entirety of Africa again, which he also probably is.
I mean the Hothies are making good use of the weapons they have. Would be nice if the US did this instead of arming the Israelis
I do wonder how Russia feels about this, though. Since I imagine they're allined with the Israelis, who are also invading their neighbors trying to steal their land.
Israel refrained from supporting sanctions on Russia, so Russia would let it bomb Syria. Israel also refused to support Ukraine with weapons and urged Ukraine to surrender to Russia. Israel also denied the Russian responsibility for the nerve gas attack on Sergej Skripal and his daughter
Israel does not care the slightest about the interests of its western allies and Netanyahu considers Putin a "personal friend".
Russia is aligned with causing as much chaos and destabilizing world order in order to grab as much land and influence in the process. In other words perfectly aligned.