Thanks a bunch for reading and for such great response. 🙏 And for your fascinating and well stated questions. I'll give you knee-jerks but they should also be pondered in depth.
1. I believe yes.
2. I think it meant murder, but one can always interpret and expand, no?
3. Buddhism ascribes sentience to all life, as a rule. Some draw the line at larger animals, some at insects, some at plants.
I think self awareness need to be part of the definition.
4. According to the Buddha, there is no such thing as a soul.
5. We're halfway between animals and Devas...
6. Again, I think self-awareness is a necessary part of the definition.
Thanks again for great questions.