The Westboro Baptist Church challenge

Can you name any doctrine the Westboro Baptist Church holds that doesn't have scriptural support? And it doesn't count as not being scriptural just because you disagree with their interpretation of scripture (for instance, WBC is Calvinist; if you're not Calvinist, that doesn't mean Calvinism doesn't have any scriptural support). Also, it might help to check their FAQ before assuming they haven't thought about the scriptural reasons for one of their beliefs.