While I agree with your second sentence here, the first one gives me pause. Why isn't it "worth discussing"? Do you refuse to engage in conversation with all mentally challenged people? Do you avoid all interactions with human children? There are many, many folks living their lives as fully as they can right now who are convinced these things are alive. There are ethical implications to that assumption regardless of whether the things are actually alive, especially when people respond to them as if they are.
We need to have better arguments and refine them for different audiences.
Are you aware of the concept of philosophical zombies? Some of the top minds on the planet are telling us they can't even determine if you or me are conscious and sentient, let alone if a machine is. On the other hand, some of those people's peers are arguing that weather patterns might be conscious (among even more extreme claims). From the standpoint of logic and reason being paramount, we cannot claim to know the answers to these questions. What we can do is discuss the ethical implications of various people coming to different conclusions about them.