Half the reason that you apply online is that they need a paper trail to ensure they're complying with all the rules about fair employment. And those are due to worker protections. Companies need to ensure it's done with a paper trail or you can sue them claiming discrimination. This is not due to capitalism. You get the same but worse applying for government jobs.
I also think the problems with dating go deeper than the dating apps themselves. Dating was already broken, and nay sayers on both sides of the gender divide have recognized for a long time. The MGTOW people for example, you get some misogynists, but the core legitimate complaint there is that "traditional" dating expectations are hopelessly broken in the modern dating scene. You know the whole "man provider" thing. The healthiest move is that you don't play the "game" in the first place. If you meet someone and hit it off, great, but if you do the whole "i gotta get a relationship" thing then you're just going to drive yourself crazy and get into all these unhealthy scenes. To get ahead in those scenes you need to play a role, usually the "man provider" role, You're going to be dating girls who probably make more income than you but they expect you to pay for dinner and plan the whole date out, and that's basically bullshit. And why do they expect that? Because they can, because it's a buyers market. And not just on the apps, anywhere where there's an expectation to meet people for this. The whole thing is decidedly fake, and you'd have to basically put on a fake persona to make it work, and you just can't keep that up.
Taking the view out to a broader perspective, "dating" as we know it is a very modern invention. It's not like there was some heyday when dating worked, because before the post-war period there really wasn't any such thing. Really it's just a modern affectation that people have cobbled together as a patchwork series of social conventions to fill a void left over from no longer having most of this arranged for us. It's the double-edged sword of having freedom and choice. Relationships are a free market now, regardless of capitalism or any other system, and that means some people of both genders are going to get a raw deal, and they're likely to be vocal about it. And the lesson there is to focus on yourself first and foremost, and make you a better you: not for the purposes dating, but for you alone; better dating prospects may arise from that, but don't focus on them. Imagine an auction and the price is your blood, and that's what being desperate in the dating game is like. The answer is to not get involved in the auction in the first place. Anyway, relationships are fairly overrated and often a clusterfuck you can't get out of. Pick and choose them carefully. They're not the magic rose-colored thing that's going to make you happy, and this goes back to those unrealistic traditional expectations. So even if you get on these apps and get a date or even a girlfriend, the euphoria may be short lived, then you gotta rinse and repeat to maintain the same feeling. This is why some people are serial daters, because they're addicted to that first few weeks of a relationship.