Many movements express your idea, none of them are popular. E.g.: * Voluntary childlessness: https://en.wikipedia.org/wiki/Voluntary_childlessness * Human

Many movements express your idea, none of them are popular. E.g.: * Voluntary childlessness: https://en.wikipedia.org/wiki/Voluntary_childlessness * Human extinction: https://en.wikipedia.org/wiki/Voluntary_Human_Extinction_Movement