Happened to me recently during a call. Perhaps they could have phrased it better, like “why are you open to opportunities” (which sounds quite dumb too tbh)
Lol… (sorry, it’s funny but also makes sense it can suck being on the other side).
To me the question is flabbergasting - I genuinely have no answer. It’s like asking “why do you want the sun to rise in the morning?”.