TLDR: is there a way to help my BP brother?

I'm 35. My brother is 32. I found TRP after struggling with female relationships for the last 15 years. Jumped from LTR to LTR with any girl who would have sex with me. Inevitably leading to the women to lose respect for me, or in the worst case, never have respect for me at all. This is partially because I was a straight up BB and beta game was the only game I knew. (Be nice, buy them shit, absorb their emotional state, etc...) Which is fucked up, because I now realize that I had a negatively artificial SMV in my own eyes. I also now realize that I am THE MAN, and ny new frame is that any woman I meet will absolutely have their lives enhanced by my company, and would be lucky If I am in their life. I supplement this by actually improving myself in the areas of game, lifestyle, and masculinity. If a girl isn't into me, that's ok, and there are plenty of other women that will be. Since swallowing TRP, my relationships with women have been infinitely more rewarding than anything I had experienced in my past.

Here's the problem. My brother is a cool, good looking dude who has his shit together. However over the last few months he is getting all hung up on his relationship with his GF, who is pressuring him to get married. My brother and I have spent the last week straight together on vacation so we have had some deep discussions on the topic. When I ask him if he's into her, his answer is a wishy-washy 'Yeah, I guess so, kinda.' Unfortunately I see so much of my past self in him. I desperately want to help. At the same time I understand that you cannot help those who do not want to be helped.

I hate to see him suffering.I'm trying to tell him to grow a pair of balls and be the captain of his own ship and his own life. It's just that he is SO INCREDIBLY BP - during our discussions he mentioned that my views on women and relationships are 'extreme' and 'not all women are 'manipulative gold diggers' (his words). In RP-speak, he believes NAWALT.

Anyway I'm not sure the point of this post. He needs legitimate help and doesn't want (or can't) internalize what I'm trying to tell him. I think I'm just going to keep my mouth shut about it from now on. Anyone else dealt wth this?