Culture is the set of knowledge acquired over time. In this sense, multiculturalism values the peaceful coexistence and mutual respect between different cultures inhabiting the same planet.
Unfortunately, dioxin is not the only issue with disposable diapers. Sodium Polyacrylate is an absorbent gel that is responsible for absorbing moisture inside the diaper. It was once present in tampons, but was removed for causing Toxic Shock Syndrome.
Cloth diapers are the only completely safe diapers. That's it in a nutshell. All of the other miracles of modern science come with varying, and sometimes disputable levels of risk. Some of the risks can last a lifetime.