It isn't a massive problem, it is a tiny problem. Our ancestors have done much the same thing to us and nobody notices, cares or is even inconvenienced. Australia has some truly monumental slag heaps if you know which desolate wastelands to look in.

Thinking that you can run an industrial process with no waste is the magical thinking. Producing solar panels and wind turbines could easily produce more toxic waste watt-for-watt than nuclear does. Nobody is going to bother to check because the volumes are too small.