I would rather not categorically ban anything. I don't want lots of arsenic in my food, but arsenic also has unique industrial uses where it can be prevented from leaching into the environment. Maybe asbestos turns out to be the only thing we can think of to enable exploration of other planets, or heat storage of zero carbon energy. Or maybe in time asbestos can be treated to prevent release of airborne fibers. I certainly wouldn't use asbestos in residential buildings or consumer products barring unforeseen breakthroughs to make it safe. But treat each use case separately, there could be rare ones where it's worth the risk.
