I think there is two ways men are operating, for simplicity -
Men of low-self esteem, who are likely not putting in effort to fitness, appearance, work etc., who will accept the dating down.
Men of some self-esteem, who are likely putting in varying degrees of effort, who wait out dry spells to pestilence to pick out a relationship with someone on your level.
Online dating can work for either, but it's going to be a waiting game. I'm aware of guys who have been on these apps for years. They are hoping to grind something out and it can happen. A couple of members have mentioned they got married after about six months on a dating site - I think Christian sites.
There are stats, I think, posted several pages back that show growing sexlessness among men, and later and later dates in which women essentially come to a realisation that they are going to have to settle for a 35 year-old, 4-5, with little about him that tingles the senses if they want a long-term relationship.
We are in a woman's market. If a woman is about as attractive as a guy, the chances are he will get into a relationship. So high is the demand for female beauty and so low is the availability of it at about the level of attractiveness of men, on an individual basis. This creates a bit of a toxic environment in itself, as men are trying to and making choices based on the most superficial characteristic. They don't experience something like their traditional chaperoned community presenting them with "soft" possibilities, and then choosing to pursue one based on one who is probably around their level of attractiveness and on character.
You can date down in terms of looks without too much issue, but I think the majority of guys in these relationships use them as temporary vehicles for fornication. If someone pops up who matches their level of attractiveness, they are most likely to jump ship.
My experience with them is that you might catch someone's eye, someone who has an attention span, and some level of seriousness. Looks obviously help. If you are in the top 2-10% of male attractiveness (which doesn't mean much to Western women), but you say something that tingles her, you go from being another random "average" to "above average" looking guy to someone hot. It was never about me picking out a woman, it was always about a women picking me out and that being my only real option.