Can SLINAC power blazar jets?

The maximum electric field of such a system is limited by 2nd order forces ((F x B) x B). Using some typical numbers for YSO for magnetic field strength, we get limiting energies of keV - MeV.
Applying same formula to blazar jets, we get ~1 GeV. Precisely the value that explains observations! But black holes power blazars.
Q: What does a black hole magnetosphere look like? How does plasma affect equilibrium? General Relativity theorists don’t know yet.

The maximum electric field of such a system is limited by 2nd order forces ((F x B) x B). Using some typical numbers for YSO for magnetic field strength, we get limiting energies of keV - MeV.