We do not know what is between Imane Khelif’s legs. It is absolutely possible to be XY and be born with a vagina that looks and works like any vagina. They might even have rudimentary (but non-functional) female reproductive organs.
If that is true about Imane Khelif, she may not even have known about it most of her life.
Should all Olympians be genetically tested or just examined to see what’s between their legs? If the former, which event do the women with Swyer Syndrome perform in? How about people with both sets of genitalia? They exist. What about people who are XXY or XYY?
And if you think the latter- please do justify that sort of invasive examination for the purposes of athletic competition. Unpaid athletic competition at that.