Disclosure - Before you had replied, I edited out the word 'psychotic' above, felt it was unfair.

Cheers, thanks for the thoughtful and reasonable reply. I agree with most of what you say. & it circles something I think about a lot but haven't made much sense of (if there even is sense to make if it), which is, the role of bad feelings in moral decision making.

I think though, the compassion line should be drawn somewhere, sometimes, with moral reason as a guide. To dip into the quagmire of philosophical thought experiments, you know, what if certain humans produced this special clotting factor, and we had to bleed them to get it, and it came with a risk of their mortality? I think reasonable people could agree, that would be an entirely different question to grapple with. So, you know, I would say it does matter, it's not a black & white thing, where either everything is worthy of compassion or nothing is. The circumstance can, should, dictate the moral approach. Eating meat, fighting in wars, there might be a right or wrong that's worth determining there. And knowing that, the moral and the practical are not necessarily mutually exclusive.

And totally, I expect people to have differences when it comes to compassion. Suppose I'm just surprised at the outpouring of love for the gross horseshoe crab, in spite of its real usefulness for global human health. Or at least my understanding of it, which I admit, is not very deep.