There is a lot of research into hard to abate sectors, I actually work for a heavy mining company that is doing just that.
Aluminum smelting is doing a lot of work going to renewables as it is cheaper and more sustainable for them.
It does take a an operational strategy change for it to work though., but it is possible in a lot of sectors.
I think that is a bit of a mis-direct. We don’t need that now, but we do need to develop it. There are plenty of electricity sources that provide enough for industry (plenty of hydro as a simple example).
The chemical processes require research and subsequent change, but removing thermal coal and just using coking coal is a massive reduction in coal usage. Maybe that is ok to get us over the hump. There is a lot of research into direct reduced iron, which is an example of removing coal from that particular process. It is not impossible, but currently maybe not too easy.