A true church should not normalize what Scripture plainly calls worldliness; when a church gives a platform to people whose public message glorifies profanity, lust, greed, drunkenness, or sin, it risks confusing light with darkness.
James says the same spring should not send out both sweet water and bitter water, and Revelation’s warning to Laodicea fits a church that becomes self-satisfied, spiritually dull, and blind to its own condition.

“hometown” folk who aren’t saved or who falsely claim salvation while sleeping with the world should never be given a platform to “minister in music”, or anything else be it fundraisers, popularity or etc.

James uses the image of a fountain to show that contradictory speech reveals a deeper inconsistency: blessing and cursing should not come from the same mouth. That principle applies beyond speech to the life and witness of a church, because a congregation is meant to reflect Christ, not simply mirror the culture around it.

Revelation 3:14-22 describes Laodicea as lukewarm, self reliant, and unaware of its own poverty, blindness, and nakedness; A church can look successful outwardly while being spiritually compromised inwardly.

True Christianity is not supposed to run on celebrity culture. When churches elevate famous people without discernment, they can end up excusing behavior they would never tolerate in ordinary members, which is spiritually dangerous.

That does not mean every artist who has a messy past can never be used by God, but it does mean the church must ask whether the person’s current life and message are consistent with holiness, repentance, and reverence for Christ.

A church can only call itself righteous if it is actually submitting to Christ’s rule, correcting sin, and refusing to bless what God calls sin.

If it publicly celebrates profanity, sexual immorality, greed, or drunkenness as entertainment, then it is not keeping a clear witness, and “good ol’ boys ” or “home folk” or even kinfolk don’t get free rides behind God’s sacred desk because the world has no part of Christ or the church until it comes for repentance and salvation and learning.

The issue is not “Have these people ever sinned?”

The issue is whether the church is using them in a way that honors repentance, truth, and holiness, or whether it is trading spiritual discernment for popularity!?

Your concern is basically a Laodicean concern: outward religion with inward compromise is failure!

TRUTH PLUS ERROR =ERROR

The answer to that is repentance, not image management. Christ’s warning is not that the church should be trendy, but that it should be zealous, honest, and purified by Him.

No church should pretend that bitter water is sweet. If a congregation keeps inviting, featuring, and applauding what openly glorifies sin, then it is not acting like a holy church; it is acting like a compromised one.
Speaking from a military standpoint, if your compromised, you’re dead!

Instead of free entry to anyone, ask these questions:

Is this person’s current life aligned with repentance and growth, or are they publicly celebrating what Scripture calls sin?

What role are they being given: witness, entertainment, or spiritual leadership?

What message will the congregation reasonably take from this platforming?

Does this decision strengthen or weaken the church’s clarity about holiness and grace?

For example, a former addict sharing a testimony of deliverance is very different from a performer actively promoting a lifestyle the church teaches against.