You seem to assume that every Christian is represented by the few voices who speak for iniquity. By your postulation then, it will be safe to say that every American endorsed Donald Trump. Afterall, he was elected President of the United States of America from 2016–2021!
Such generalisation may fit a particular narrative, but it does not fit who a Christian is. Just because some preacher runs off with someone else’s spouse, does not mean that all preachers run off with people’s spouses. Or because you know of a Christian who is corrupt does not mean that all Christians are corrupt. By the same argument, we could aver that Americans are selfish individuals who care only about themselves.
Methinks, you need to redirect your grievances at the specific individuals, and not project it on all Christians, who are mostly neither Americans nor care about American politics!