Check your replacement coverage amount. It probably is still at whatever you told them when your policy began unless you increased it - right?
Yes I increased it, but premiums will rise regardless. You’re paying more for the same size loaf of bread today than you did ten years ago. Not sure why you would expect insurance premiums to remain the same year after year.
Unless your lender requires coverage or you have no mortgage simply opt out.
My home has no debt and is in zone x yet I still choose to insure including flood coverage.
Everyone needs to comparison shop everything.