The recurring theme you usually see out of leftists trying to denigrate the authority of the Bible are the contemporarily unacceptable laws of the Old Testament, such as the “shellfish” comment. Usually this is to de-value the proscription on homosexual behavior.
Either they are ignorant, or intentionally deceptive in this regard, because Christ gave us a new covenant on what we could eat, etc, over the old Torah laws. But He did not say “oh, and by the way, guys, gals, have all the homosex you want, it’s OK now”.
Obama was ‘stammering mad’ that we think his ‘inflation’ policy is silly. Here, he tears up straw dogs to make the Judeo-Christian faiths seem silly, and we are supposed to faint at his words.
Ah, yes, the trick of overlooking the Apostolic Council in Acts and the writings of St. Paul.
The Church, using the authority granted by Christ, set aside most of the cultic law of the Old Covenant, but did keep the prohibitions against porneia (sexual immorality) and blood (in the West taken as bloodshed, in the East as a very limited recollection of the Kosher prohibition—we Orthodox don’t eat blood sausages), so we Christians eat shellfish (it’s even allowed to Orthodox Christians during our fasts) and don’t have to check the label to avoid wool-linen blend clothing.