What exactly am I supposed to be convinced of? That people who have choices about how to spend their time 1) choose to be mostly alone and 2) are happier because of it? This is a pretty strong causative claim that would require a lot of evidence and considerable expertise in interpreting that evidence, neither of which I have.

Even the surveys you sent already suggest that people who live with spouses are much less lonely, which seems to be the opposite of your claim.

Frankly, your claim sounds so insane to me (someone who has a lot of choice in how I spend my time, enjoys the company of others often, and is not lonely) that I think it would require extraordinary evidence to convince me.