Baptism IS salvific: "Whereunto baptism being of the like form [visibly related to water], now saveth you also" (1 Peter 3:21)
Oh and that's been brought up before countless times and discounted... Somehow, the Church for 2000 years can't read simple words and figure that this is not what Peter meant!
Almost as much as James 2. Obviously, he wasn't talking about salvation, although it clearly says he was.
The obstinate who continue to reject Christ's Church only have themselves to blame for their upcoming perdition.
Regards