What about future gigs? If this political group likes you then you may be getting offers to play at other rallies/events.
Since your management company has lowered the bar and manipulated you and the band, can you accept that it will happen again?
Did they violate their contract? or is it something to be discussed and possibly getting a revised contract or management company?
Yes
Sounds like it's time to start looking for new management. I wouldn't cut off my nose to spite my face. But, I also would not be tolerant of management (whether it's fellow bandmates that own the band or an actual agent) that lied to me. Lying by omission is still lying.
Yes
If the band is a collaborative effort where members get a say in how things are run, then your problem is primarily one of communication: Where was the band meeting to discuss this issue? Your secondary problem is that your view of the band image, your personal beliefs, and your desire to be paid are in conflict. Figure out which is most important to you, then return to the band meeting and discuss, so that future gigs are booked accordingly (or to notify them of your departure)...
Yes
I see this issue, first and foremost, as a matter of dishonest & unethical business practices. Since you were essentially lied to and manipulated into taking this gig, I don't see how you're ethically obligated to accept it - although as a practical matter, there are clearly good reasons to go along with it. This time.
Secondly, there is the matter of lack of communication among band members: Has the issue of standards, values and convictions never been raised before? Not even once? If not, this is a problem as old as music itself: musicians failing to look ahead and proactively resolve such potential problems - BEFORE they occur. Fix this. NOW.
Lastly, unless I'm missing something here, doesn't a management firm (I assume that's what you meant by "the management") usually work for the band - and not the other way around? If so, how did it ever get to the point where they're telling YOU what to do - rather than the other way around?

Personally, I would sit down with my fellow band members and get straight on these matters - once and for all.
MM
