Lithium isn’t mined it is gathered by pumping water into salt flats so the lithium rises to the surface and it isn’t done by children. You’re repeating misinformation.
There is an environmental cost for absolutely anything we make. Do you suggest we stop making anything and everything?
Electric cars are the more environmentally sound choice. They are a required first step to ending our dependence on fossil fuels. Without them we cannot end our dependency.