I would have phrased it as “supporting” Threads. If you don’t defederate, Threads will take over your instance. Either directly through the sheer amount of posts, or indirectly by colluding with your instance admins. Or both. It’s how they operate. And then the ads and data harvesting and walled gardens will come.
To be fair, that’s usually correct. Women have their pick of men, generally. If a guy answers a band she doesn’t like, most likely she’ll move on.
So guys lie and tell her everything she wants to hear. And then once they get their foot in the door, they can start telling the truth.
This guy handled it very badly but I can see why he didn’t want to answer.