Nothing gets burned or otherwise destroyed when receiving EM radiation via a dish and converted it into electricity via a receiver.
Sure, the amplification stage of the process likely works only one way, and should be replaced in order to send something.
The one way process of burning oil to generate heat seems much more primitive than the energy conversion offered by a diode, TBH.
You can push or tow an electric car and charge their batteries. Because electric motors are also generators.
Even with your simplistic fossil fuel car in your example the alternator within can also be used as a motor.
It was Russia and other autocracies etc. that diminished the trust by actually financing developers for multiple years to first earn trust and finally introduce backdoors into open source software, as demonstrated by the XZ utils backdoor.
In open source projects, maintainers need to have some initial trust into each contributor, and let this trust naturally grow with time and contributions. They cannot perform intensive background checks on everyone before accepting a patch.
While it is easier to uncover backdoors in open source software, there is no good way to defend and prevent against this kind of attack in this type of development process. All open source projects can do is trying to take away some trust from people within higher risk groups. This of course might lead to discrimination.