an LCA is a line pilot first and foremost. If an LCA wants to go off the reservation and specifically act against the best interests of our seniority system, (and bidding your schedule is very much a part of seniority rights), then that guy or gal shouldn't be an LCA. You fly what you bid.
The company tells us to bid what we want, and don't bid what we don't want. Well, that works for monthly scheduling preferencing too. Maybe we just shouldn't bid at all, and let the company assign us every week.... NAH, I'd rather bid, and use my seniority to predict the quality of my trip. The quality of my trip is defined both in pay and in seat position.
The company can have the seat, it is theirs at the end of the day, they just need to pay me for it. They can FBO me, and buy my trip. I can then stay home, or decide if I want to pick something else up. But, sending me to Bunkie duty just for the convenience of the company is unsat, and any LCA that tries to abrogate my seniority is just a stooge for Howard.