Immorality is just another word for sin. Sin has grown, has abounded ever since it entered the earth. It is what caused God to destroy the world once in the time of Noah and it will be in the end times as it was in the time of Noah. Growth of immorality is not anything new nor will it end before the second coming of Christ. SIn begets more sin and even Christianity does not eradicate it but omnly provides salvation from the consequences of it in that Christ has paid your punishment for your sins if you believe on him.
Why does the image of Jesus spark a confusing difficult problem or question?
It all depends upon your perspective. If your perspective is that of "a sinner saved by grace" the image of Jesus does not spark anything except thankfulness and love for him that he should sacrifice himself that I may live,
If your perspective is that of an unbeliever, well then it is obvious where the problem lies. The difficult problem or question that is invoked to the unbeliever confronting the image of Jesus is that he is left with two choices, submit and accept his creator who is holy and is the only salvation of his soul or reject him, for whatever reasons, and be condemned to hell for eternity. Not a choice anyone would want to make but is forced to make whether they believe it or not, thus sparking what you describe as a confusing difficult problem or question. No matter what you believe, believing don't make it so..what is, is and you won't "know" 'till you get there.