Easier said than done, particularly for some people.
Back in Fundie World I once had a pastor who confessed that people who keep “coming forward” for every altar call “just in case” were the bane of his existence. Why couldn’t they “just have faith”?
In other words, a subset of people with essentially OCD issues would be attracted to our relatively mild version of fundamentalism (no real hellfire and brimstone style preaching) and yet the damage was already done elsewhere; these people have PTSD about hellthreat and what they need are therapy and medication really. But we did not believe in head doctors so we never referred them to any. Besides, to admit that our basic message (repent or else) was actively harmful to some people was something we weren’t willing to do.