There are apolitical reasons for this theory. I'm not conservative and found it to be in the realm of plausibility. For what it's worth, I've entertained it before it made headlines.
I feel like these are probably on two different levels, but given that you called it a theory and not a conspiracy, I think you'll also probably disagree.
Edit: I posted the wrong vanityfair link, fixed. Also regarding my terminology, "conspiracy" is a bit of a loaded term, and given the information in the vanityfair article I decided to keep my terminology more neutral
[1]: https://www.vanityfair.com/news/2022/03/the-virus-hunting-no...
You seem to imply it is some crazy far right conspiracy, but that wasn't the impression I got from skimming the Wikipedia article [2]. There's a good few serious people who consider it possible and while I'm sure some distorted version of it is weaponized by politicians, I don't see why that's reason to discard it.
[1] (https://news.ycombinator.com/item?id=29901824)
[2] (https://en.wikipedia.org/wiki/COVID-19_lab_leak_theory)
Do you feel that an intelligent, principled person cannot make a valid argument opposing you and your wife for any of these phenomena?