I see the religious right problem thusly - they have historically been the “do-ers” of the GOP. GOTV, canvassing, etc. I think that for years, the GOP promised them things that they never delivered (e.g. overturn Roe v. Wade.)

With Palin elevated to possibly being elected to a real position of power within the GOP, they had their opening - and have no intention of backing down.

If the GOP cuts them off, they are going to lose many foot soldiers in the battle (not to mention votes.)