There are not even 7,000 Mossad agents, period. 7,000 is the highest estimate publicly available for the TOTAL number of employees in the Mossad, and 95% of them are not agents - just like most US intel are not field agents. Real numbers for agents are far, far lower without a doubt.
Also - Israel got burned so bad with the idiotic Pollard affair, there is zero chance Israel would put so much of their assets in the US when they have a 7 front war. They are many things, but they are not idiots, and they clearly care far more about their immediate security interests than what the US thinks.
These theories make absolutely no sense, my dear fried.
"Mossad agents" would by definition not be "Mossad employees"