“What’s the alternative to choice—genes?”
Nope, environment during early childhood.
No. Evironment isn’t a determinant; at best it’s a mitigating factor. Jimmy Cagny & Daniel P. Moynihan grew up in Hell’s Kitchen. Nor is experience a determinant.
There’s either free will or no free will. No free will would mean a predeterminant—a new or displaced gene, e.g..
Environment can include a lot of things like being poisoned by chemicals. Too much Soy, perhaps, or BPA? Male homos could be possessed by a female demon?
Whatever it is, it’s a social problem, and we need to find the cause of this social problem.
So we are back to choice or genetics. Which is it?