I would encourage you to be very careful about speaking/commenting that way against Pastors. Actually, I'd strongly advise against it. Having read a recent article by Piper, I will say he did not tell anyone how to vote, nor did I get the impression he was voting for Biden. I got the impression he was voting for neither. I am glad he shared how he thought through a difficult decision.
Ladybug, indefense of Spurgeon, I think you are misunderstanding what he was saying if that is a quote from him. He was not saying you could believe anything and be a Christian. I think that should be quite clear from his many sermons.