It still has to be economically viable. Even if someone made one with good intentions, there’d still have to be a way to keep it afloat. How would you go about doing that?

There is a wide range between maximizing for profit and making a project viable.

I actually think that a good and popular dating app would theoretically solve that as the dating pool would be much larger.

On one hand, on the other people get more picky with more choice. Dating is not a technological but a societal issue.