Hypocrites don’t change the truth.

If the Christian faith is true, it would still be true even if no one believed it, or if all who did were hypocrites; and if it is false, would still be false even if everyone believed it and there was no apparent hypocrisy in their behavior. (FT, 196)

McDowell, Josh. Evidence That Demands a Verdict (p. xlii). Thomas Nelson. Kindle Edition.