Tesla's approach, which equates to something like a huge wireless charging system, would produce a lot of radio interference and disable our communications. So that won't work.
What I find odd is that electrons and protons were produced somehow, assuming they have not been around for infinty, and nobody is working on the problem. If we figure out how to make electrons we will have a limitless supply of energy. Further, any time there are reports of an experiment that produces excess electrons and consequently excess energy, it is immediately criticised by the mainstream science community and media. So scientists take the position that electrons were produced and then take the opposite position by denying that they can be produced.
I plan to work on the problem whenever I figure out where I can live and set up my lab. If I succeed I expect the mainstream will deny my results are real, just as they always do.