Political parties exist for the sole purpose of rigging politics by disenfranchising the public. Their entire existence is a kind of corrupt, elitist caste system.
These organizations need to be treated the same way as corporations that get too big: they should forcibly split up. Force parties to form coalitions to get anything done, like in other parliamentary systems. Take away their corrupt levers - like FPTP voting (force RCV instead) and dark money, and return power to the people instead tolerating it in the hands of a couple private, invite-only cabals.
I hope these are used against them in court. Something tells me that complete lack of respect for the charges and lack of remorse for the crimes is not going to go over well with a jury.