Just due to binding energy fusion does not apply to elements larger than iron. To create any of those we need neutron or proton capture. And if you're creating this massive state of the art laser array to create fusion to produce neutrons why not just build a neutron source to begin with? There are thousands of high flux neutron beams all over the world. Just build one of those for about 1/1000000 of the price or better yet just purchase one from a commercial supplier.

I'm not trying to be rude or anything, but proliferation of nuclear material is the least of the problems with fusion. It is just entirely unfeasible and way way way more expensive and technologically advanced than any other method.

Lasers shoot photons my man. There is no feasible way to transmute lower Z elements into higher Z elements with a laser. It is simply not possible. You might be able to induce beta decay on some isotopes but not at a scale to produce any measurable quantity of SNM