It's nice when you can set an impossibly high bar before which you can dismiss all your personal responsibility.
Does this argument work equally well for human slavery for you? We haven't met that bar for humans either. Is wondering about my consciousness waffle or do I get a pass in your book?
Your arguments seem bad faith but I'll take the bait...
> an impossibly high bar
Not impossibly high. An imperfect testable theory is achievable, agreeing upon it might be the challenge.
> dismiss all your personal responsibility.
You are staking a moral position. Be careful, you are probably guilty of mistreating other unknowably-conscious entities whilst casting judgment upon others for their position. And the person you are a responding to probably is conscious.