It's nice to see someone at least acknowledge that baptism has to be taken seriously. While I don't totally agree with your view of baptism, I do think it is a step in the right direction.
I believe that your intent is to demonstrate your points biblical. That tells me that you are a bible Christian and not a philosophical christian.
Those verses are in the bible, and like you, we should all take them seriously and put them in a biblical context. We might still arrive at different places, and we might debate one another over how we interpreted the Bible, but, fortunately, we are all using God's Word.