The 3AM raid in which your pregnant wife is beaten into miscarrying and your cat is stomped to death is pretty unsettling too. And the BATFE does those things, though not yet in a single "raid". (Note that the even use the military term for what they do, even though they are allegedly a tax collection agency. )
Not anymore they aren't. When they were moved to Justice from Treasury, they became a law enforcement agency. Of course other than a few laws on the manufacture of alcohol, all the laws they enforce are infringements on the peoples' RKBA, and thus completely unconstitutional. Their tax collection function, primarly on smokes and booze but also on short barrelled fireams and machine guns, remained in treasury. They'll still come stomp on your cat if you fail to pay that tax, which their Treasury brethern won't accept any longer anyway, unless it's for transfer of an existing registered weapon. Actually I'm not sure that the NFA portion of their tax collection function stayed in treasury or not. I'm pretty sure they, BATFE, still maintain (poorly) the registry.