It definitely is extortion. Pay the initiation fee and dues or you don't work.
I've neot heard before of a helper paying these. If it says on your pay stubs that these fees are being deducted, AND you never signed anything agreeing to tho or acknowledging that you understood thia would happen, you can probably get your money back. Each local decides to take these fees or not, so only some of them are blood thirsty leaches.
Talk to a personnel person at the center your driver worked out of. If you get no satisfaction contact the state attorney general's office.
MWG, back in October (I believe), you posted that you were on board with paying initiation fees and dues. Ever since, you've been complaining about them.
With your (alleged) journalism background, this looks like your big chance to get a national by-line about the "blood thirsty leaches (sp)."