I would invite you to notice your interlocutor's assumptions, especially as revealed in his prior comment. Look at how he misunderstands the situation:
> If you wanted to convince everybody about a vast universe of secret business and your expertise in it...
> Like if I wanted to convince people that In’N’Out has a secret menu...
You are discussing business. He is understanding you to be attempting to "mog" him, because he cannot adopt a perspective wherein the conversation represents anything other than a vacuous social challenge or "brodown."
In short, you're wasting your time.
I am so old :(
I looked up “mogging” and I’d think “my assumptions about stuff are valid because I’m a lawyer and don’t know what you do” would count more as mogging than “that doesn’t quite sound right, this is a conversation about something specific and not your general cleverness” but I’ve got a Benny Hill archive to get through