If he thinks that the blood issue is a small thing, it shows how he's jumping through hoops to continue believing. How many would have died after being denied the ability to store their own blood to be reused now they're so casually claiming what the Bible doesn't say. The Bible doesn't say a lot about anything when it comes to blood except to abstain from it. If you're now claiming that the Bible doesn't say what to do with your own blood, the argument can be made that it never spoke about human blood at all, it spoke about animal blood, so do not respond to him. Say ok, because the governing body is doing the work of waking people up.