Or unless you're right by "rightly dividing" Gen. 38 right out of the Bible.
Your comment that "There are no commands, no teaching to the church, no examples for the church" in this passage, is unsupported.
You could certainly prove me wrong if you could find someplace in Scripture where it says "Pay no attention to Gen. 38", or shows someone in practice using anti-fertility pharmakeia with Divine approval.
“Or unless you’re right by “rightly dividing” Gen. 38 right out of the Bible.
Sorry, but this passage has a context and a meaning different that your assertion. It remains Scripture and useful for teaching and reproof.
You can’t make it into what it isn’t.
You have not proven your truth claim. Not close.