You have become blind when you see nothing wrong with something God has called sin.
Isa 5:20 "Woe to those who call evil good and good evil, who put darkness for light and light for darkness, who put bitter for sweet and sweet for bitter."
Matt 6:23 "But if your vision is poor, your whole body will be full of darkness. If then the light within you is darkness, how great is that darkness!"
Lke 11:35 "Be careful, then, that the light within you is not darkness."
Prov 17:15 "Acquitting the guilty and condemning the righteous--both are detestable to the LORD."
Isa 30:10 "They say to the seers, "No more visions," and to the prophets, "Do not prophesy to us the truth. Speak to us pleasant words; prophesy illusions."