I have a friend who says he believes in the…

I have a friend who says he believes in the Bible but says science has proved millions of years. He says he believes in the Bible yet thinks God is okay with homosexuality regardless of what the Bible says because when those things were written “humans didn’t understand sexuality like they do today.” He says he believes in the Bible but it completely okay with people changing sexes if they were “born as the wrong gender.” The list goes on.
I’ve had multiple discussions and can never seem to get through. He married a very very liberal woman so I think she’s been a huge influence on him in the wrong direction. Do any of you have anyone similar in your life and what is your approach?