The problem with reality is it is not clean or simple. For example having chlorinated water keeps you from getting any number of terrible diseases when you get a drink. At the same time it's a deadly chemical that takes huge amounts of industrial processing to make, and if not treated right is a source of pollution.
Not any different then the 'forever chemicals' we've made. They were highly stable and did their jobs well. They also are terrible cancer causing bioaccumulators that have caused tons of misery.
Open ended problems do not have simple solutions. They have trade offs. It's a good idea to fully understand the trades you're making.