You can never prove something conscious. That is a category error. If your morality depends on determining what's conscious or not, it's broken.

I, and the rest of humanity historically, don't have that problem because we don't derive moral value from capabilities, but from purpose. When we say things like "humans have equal value and dignity", we say that a humans purpose is not subordinate to any other human's purpose. When we say things like "there is just one God", we assert that whatever a certain human's purpose is, it's not in conflict with other humans' purposes. This is very basic, you should have understood this a long time ago. I'm not going to explain further since it appears someone is flagging my posts.