At some point, EVs and all tools and machines such that now use ICE as their power source will become de rigueur. Wit the possible exception of large earth movers and construction machines.
The battery research is really now in its ‘Edison and Tesla’ stage, with many discoveries and improvements to come..............
You are probably right. The earth has finite fossil fuels and they should be conserved for higher-value uses. The ultimate solution will be to build nuclear power plants to charge batteries.
Unfortunately, to do that, you have to get those who block nuclear plant construction to endorse it as the way forward. That might be a tougher row to hoe than creating better batteries.