Should we move towards irrationality or rationality? If being rational is marginally better we should move towards that. We want less serial killers in the society.

So pointing out the fact about pets is to force meat eaters to consider their irrationality face to face.

We have done this throughout our evolution. Some people notice the irrational things in our behavior and try to reason with other humans why doing these irrational things is wrong and should be stopped (slavery, racism, etc).

That's what I am doing, and anyone should do. Just accepting the fact that humans are irrational is just accepting the status quo.

I hope to have the discernment to tell the difference between the irrational things I cannot change from the ones I can, and I don't think I'm changing this, so I accept it.

Few people believed slavery, a mechanism that stood for millennia, would end. Yet..

I also think eventually we won't eat animals, just not in my lifetime. Practicality doesn't need to be blind to morality and might also be wrong (it might be faster than I think).