Quote Jesus precisely, one of the various times he told his followers to forsake everything, take up the cross and "follow me."
Then tell them that he wasn't just talking nonsense or schizophrenic riddles, he actually wants his followers to utterly forgo sin and to become as Paul or the Apostles, or as He. One cloak, one staff, one mission.
But it's like trying to convince a tranny that there's no gender but genes.