Yeah you are right on that but there still are many backdoors on plenty of applications that are made by American companies. We also know that some agencies wanted to put backdoors on linux kernel etc. In that case why would you not trust an open source app, and trust a closed source one just because of the nationality of developers

I mean the same thing can be said about the USA, also if there are that many problems why don’t you just check the code, it’s one of the main strengths of open source software.