> Solar panels are recycled at almost 100% of total materials.

That's very clever wording. If someone glances at this sentence they might interpret it to mean that almost all solar panels are recycled. But your own citation tells a different story: https://e360.yale.edu/features/solar-energy-panels-recycling

> Today, roughly 90 percent of panels in the U.S. that have lost their efficiency due to age, or that are defective, end up in landfills because that option costs a fraction of recycling them.

Let's compare to spent nuclear fuel, which we know for sure does not end up in landfills. I am talking about today, not some hypothetical utopian future. Today, NPP spent fuel is safely sequestered while solar panels are dumped into landfills.

> nuclear waste in the US does not have permanent storage or recycling solutions

It does, it's just not built yet because it doesn't make sense to do it now. In a few decades, maybe a century we will have commercialized fusion reactors. Once we do, we switch to fusion completely and build the deep geological repositories or whatever other solution makes sense then. Or we can even recycle the spent fuel–the only thing stopping us from doing that now is misguided US politics (as usual).

> we keep spending more the more we attempt to build it.

It's capex. We are investing in nuclear technology. If you have a proven design and build the reactors at scale, the costs will flatten or decline, which is obvious to anyone who knows about economies of scale.