Absolutely, but one factor that is overlooked on the matter of romantic relationships is the manufacturing of unreasonable beauty standards, especially of women, most men are looking for a "trophy" wife, and that limits much of the people who they look for to begin with, or reduces the motivation to start because they feel that "lowering their standards" is a failure so why even bother?
So I think that it is a cumulative pile of factors that reaches that point, by the side of women toxic masculinity, regular systemic misogyny, in particular domestic abuse, could probably play a factor on the issue too.
Other things are as I believe you mentioned, the tendency of capitalism to individualize peoples lives and for sure not having the means to go out and do things that are viewed as couples things like dinning out going to the movies, or going to the bar,or equivalent,with your friends as well, and the fact that being broke makes you put most of your energy into not being broke, and the rest of it into managing how to.survive on such few resources