> If the moral implications of killing animals are roughly the same as killing plants
There is a difference in killing and suffering. I advocate to eliminate suffering and kill humanely. That's not a concern with plants.
> Why is reflection on experience the bar and not experience itself?
It is for suffering, but not for a right to life. There is no 'person' without self-awareness. Thus I don't see a need to grant a right to life.
> Animals demonstrate learned behaviors, e.g. recognizing humans from memory and resuming friendly behavior based on that recognition. Similarly, avoidance of situations that are known to cause pain.
Animals, most mammals at least, are hardwired for socialization and to avoid harm. This doesn't really indicate anything.
> this reflection reveals are the same experiences that predate our ability to self reflect
That's the key though. Self-awareness is the distinction.
> I guess what I’m fundamentally not understanding in your argument is the basis for the idea that a species gaining self reflection somehow becomes the point at which it becomes immoral to kill or harm that species.
Without self-awareness, they are not a 'person', essentially just more complex automata. They can't shape their environment, they are just a part of their environment, following their instincts.
They don't think, therefore they are not.
> Furthermore, moral behavior can be found all throughout the animal world, with clear indications of love/protection, companionship, sharing/cooperation, reciprocity, memory of transgressors, etc.
Some of that is just programmed instinct, quite different from humans. For examples, some mothers will attack their young, does this mean they 'love' them, or they have a programmed instinct to protect their young? Some of those same mothers will eat some of their young also, keep in mind before you answer.
> I’d argue that gaining the ability to self reflect is the very thing that increases our moral obligations.
Sure, to reduce harm, but not to not take a life.
Take a cod for example. It has no self-awareness, no personhood, no traits worth valuing. Its body is worth more than it's life, and if killed humanely no harm is done.
> the implications of it mattering are worth exploring more broadly.
I agree. But I've spent the last few years debating and researching this stuff, and I've come to my conclusions. They are in line with our current scientific understanding, and unless something changes it's what will continue to make sense to me.