The immoral Christian needs to find out for themselves if they're being immoral because they aren't saved to begin with or because they've fallen away into willfully sinning because of a 'works don't matter' teaching.
Listen, people who are not saved.....= sin for the same reason that Believer's sin.
Its because sin feels good and its fun to do it.
So, lets not try to sound spiritual, lets instead just be real.
Also, there is no teaching that is "works don't matter".
No REAL Christian teaches this.
You can't find a video or post a sermon, where a Pastor, Minister, Bishop, says that "works dont matter".
What you can find is the truth that to be born again, is All of Christ, and none of Works.
You Can open a NT and find that..."Faith without works", is God's Grace.
But noone teaches that works are not a part of Discipleship.
However everyone who is skilled in correct Spirituality will never teach the Devil's gospel of "works to be saved and to stay saved".