How important is marriage to conservative men?

Ive been sitting in conservative media for a bit now, and guys are complaining about how they want to get married, but there are no good women to marry. It seems to me though that men keep trying to find problems in marriage and refuse to solve any.

I saw a tweet recently about a video of a newly divorced girl saying that her husband cheated on her with a caption "Was he wrong for cheating?". Majority of guys said he wasnt. She said she had problem with not wanting sex and later finding out the reasons. Instead of them talking and trying to figure out whats going on, why, and how to fix it she doesnt say either of them actually talked to eachother. Only she did research and looked into therapy, but why are all the guys blaming her and justifying husband cheating?

I also heard things like "guys should be able to divorce their wives if they gain weight during pregnancy" or "women are no good after 21" and at this point idk if you guys actually think that or are guys with those views just very vocal. I personaly feel like we should be trying to protect marriage, especially in hard times like this.