The waste produced by solar/wind is no different that waste produced by general economic activity. The US produces about 600 million tons of construction and demolition waste each year; solar/wind waste will be small fraction of this.

So, the solar/wind waste bugbear is a red herring, since dealing with it involves solving a problem that would have to be solved in a nuclear-powered economy also.

The opposite is not true of nuclear waste: there is no high activity radioactive waste stream in a non-nuclear economy.