Go to any cyber security conference. Check out the CTF teams, Ghidra is used everywhere.
Can you prove that there is a backdoor? Remember that it is freely available, and if China, Russia, NK or any other nation state could find a backdoor, they would be shouting it from the rooftops to shame the US.
I dont doubt that the NSA could have seeded a backdoor in an open source project, but I very much doubt they would sign their name to it...
