You seem very bitter. Almost as if you were fired/resigned. Personally I was former regional, legacy and then FDX. I voted no on TA1 and completely support the road we are trying to travel towards an industry leading contract. My experience at purple, is completely different to yours, amazing people to work with and good equipment to fly. My quality of life and compensation far exceeds anywhere else I've worked.
Yes it's time to improve our contract again. That's what happens every cycle and it usually takes time beyond the amendable date.
My guess is this, you'd be horrible to work with, likely a right seat Captain with a massive ego and if you're not already gone my hope is you will be soon.
As for the "it's better at the legacies" argument, Well I just received a message from a 6 year person here that bailed for a "Major" they are experiencing buyers remorse. So beware, sometimes it's better to tidy up your own current place rather than buy the new one.

Your comment about the culture here is odd, you seem to be one of the worst, most venomous posters on this site. I find it hard to believe you'd be happy at any airline, maybe you should take a look at yourself, a little introspection. Honestly with you gone the culture would make an instant and drastic improvement.