Sentencing Twitter abuse pair Isabella Sorley and John Nimmo, Judge Howard Riddle said it was "hard to imagine more extreme threats."
The pair admitted sending a series of abusive message to feminist campaigner Caroline Criado-Perez.
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Portman was due to receive the award in Israel in June and said that her reasons for skipping the ceremony were solely due to Mr Netanyahu.
Analysis of Department for Work and Pensions data found the average man receives £153.86 a week and the average woman receives £125.98.
The country says it is making the move to shift its national focus and improve its economy.