OP is right.
Past a certain age, 25 let's say, finding a decent girl is almost impossible, because they're already taken for marriage. It's not likely you'll find any on any dating sites or apps, because women with their shit together don't need them. Their social circle is huge and likely rub elbows with high quality men at country clubs or at social events like plays. They're after men from good families, men that learned how to play golf, musical instruments or learn 3 different languages.The type of men that have their shit together to the Nth degree. They aren't going to be interested in going on online dating sites or apps to match with human trash or man children that play video games or surf internet forums. These are the women that actually make relationships worthwhile.
Ever since I ascended via my surgeries and gymcelling I matched with two of these types and went on a date with the first of them, and dated the second for a little under two months. Without going into too much detail, both interactions went "well", but one had a PhD and the other was studying to become a doctor, both higher class, not crazy and gorgeous. Thing is, I fall into the category of manchild, so thing's didn't go too far, obviously. I managed to limp along because I'm pretty quick and funny, but still, I'm not very well socialized and still learning.
This was after a year and a half of dating sites. The rest have been crazy, bipolar, aspie or human filth. Now I'm 30 and feeling hopeless. Point is, if you're not matching on tinder or whatever, chances are you're not missing out on too much.