Diapers don't biodegrade?

I guess the way to protect planet home is to not use Seventh Generation diapers. According to the FAQ section, "Just like most disposable diaper designs in the marketplace, Seventh Generation diapers are not biodegradable, nor can they be composted. Many of the materials used are synthetic, and do not biodegrade." Whoa, I thought the goal of this company was to NOT be just like everyone else. But with diapers, apparently it's okay? What will our seventh generation think when they've got tons of Seventh Generation diapers piled in their landfills and backyards? And by your reasoning, why don't you use bleach or other toxic chemicals in your cleaning products? Your new motto should be: "Everyone else is doing it, why can't we?" By the way, gDiaper inserts are biodegradable and can be composted.