Thanks everyone, sorry to not reply individually but I'm back at work today, so less time on my hands.
The general impression I am getting is that mining is a necessary evil - and maybe I shouldn't even be labelling it evil, it just is what it is and we can't do without it? We can only make things better by improving mining practices, in terms of the actual mining engineering itself, the processing of the ore and the ESG (environment, social and governance) practices of the mining companies.
A big way of improving things I think, is through increased recycling rates (or to give it it's new trendy name, urban mining). eg it's much better to be able to recycle old solar panels, phones etc than it is to dig up more rare earth metals to make new ones. Therefore we need more research into safe, clean methods of recycling which are economically more viable than mining (otherwise it's unlikely to become standard practice).
And of course, less consumption. I couldn't agree more with this, but I despair when I look around at society in general and I have no idea how to persuade people that they don't need the latest phone upgrade or the biggest SUV (I mean, have you seen the AIBU threads on here where anyone dares to criticise SUVs? Apparently they are absolutely essential to a lot of people's lives 🙄)
@Daftasabroom sorry, I should have been even clearer in my explanation of what critical minerals are. When I said copper, cobalt, lithium etc are critical minerals, when they are obviously metals, it's just shorthand for the mineral ores, such as chalcopyrite, which they are found in. Otherwise they are too many to mention!