I believe the issue with recycling is non-proliferation from one or both of these reasons: 1) If I'm not mistaken, recycling generates/accumulates plutonium, wh

I believe the issue with recycling is non-proliferation from one or both of these reasons: 1) If I'm not mistaken, recycling generates/accumulates plutonium, which in the wrong hands can be made into a thermonuclear weapon. 2) Enriching the spent waste back into fuel is much too close to the process of enriching it for bombs. I distinctly remember a YT video where they said that it's very hard (as in, much work) to enrich U to x-% for reactor fuel, but once you're at x-%, it's realtively easy to keep going to to y-% for bombs. So to recycle waste involves running that process and the NRC or some governments simply don't allow anyone to do it. My apologies if I'm incorrect in any of this.