What might make me change my mind about the existence of god(s)?

[zorkan]

"I really wants me a new Audi!"

Then think positive.
https://fourminutebooks.com/the-secret-summary/

I don't know.
I wanted to be scratch golfer, and was sure I could attain it.
Got down to 10 handicap, and that's was the best I could achieve.

[Asmodean]

Yeah... I don't even want a Audi. I have a by-this-point-kinda-middle-aged Opel Insignia, which, while not precisely a speedy conveyance, has all sorts of creature comforts a motorway-cruising The Asmo might want.

That's besides the point, really. These "A attracts B, therefore profit" beliefs are many and varied in exactly what it is they are selling. Their major problem in my experience is the narrowness of their field of view. For instance, "money attracts money." Yes. It can do so. It does require work, however, not merely possessing money or giving it away in a non-profitable manner.

If you account for your variables, however, it may well be a true statement. For instance, "A monetary investment in a growing business will tend to increase in value as long as the business keeps growing" could be naively formulated as "money attracts/makes money," but there are clear buts there, that disappear when the statement gets truncated to a "talking point."

"Opposites attract" often suffers from the same. There are situations in which such an attraction is not only factually accurate, but also practically relevant. In other situations, however, it may well be neither.