Vanderhoven, that sounds like an excellent approach in the right setting. I think your reasoning is very sound and it would be very convincing to anyone even partially open-minded.
I am in a different setting, where the only theological discussion I would engage in, would be my wife and her relatives. If I were to try your approach, I would not be able to get more than the first few words into that dialogue before being shut down and accused of something.
I have to take a more subtle approach. For example, I have been able to introduce the concept of "confirmation bias" to my wife as the explanation for what is happening in US politics. We have similar views on US politics and it was easy. She even recently sent me a link to a news article that made controversial climate change assertions, with a joke about it being our "daily dose of confirmation bias". Yay! She got the point. We can look at what other areas in our life we might observe confirmation bias, later.
I think if I was to raise the word "eisegesis" at home in a biblical context, I would be instantly deafened and blinded by alarm bells and flashing red lights. Hence I am trying to think of non-biblical examples such as Nostradamus. The Oracle of Delphi might be another good example. I can't think of any others at the moment.