I agree with everything in your post, and we are in the same side. But for the plebs' sake, especially for someone very new to Bitcoin, I won't recommend them to risk tainting their coins if they merely want privacy for the sake of privacy. That's just practically speaking ser.
Here's the problem with that, though: The more people who buy in to this "taint" nonsense, then the more powerful it becomes.
For that we have technologies available to keep Bitcoin fungible. We already have mixing/tumbling services, which are undervalued by the community. We have Lightning/off-chain network technology, which can be utilized as privacy preservation networks. I truly believe Lightning should be more than a protocol for faster/cheaper Bitcoin payments.