We can pretend democracy is functional and do the justifying in hindsight.
Fact is AIPAC and Republicans bought Jamaal Bowman away with 15 million dollars and beat him by 10%. Bit of an elephant in the room. Bowman was one of the first to really stand up against israel.
Comparing to Cori Bush is difficult. Your article claims AIPAC spent 320K against Cori which is far less than 15 million.