Depends on your definition of being dead.

Is he brain dead? Maybe

Is he on life support where blood is being pumped through his corpse and a nurse comes in to turn him over twice a day to prevent infection from bedsores? Probably

Is he ever returning to the Senate? No.

I see a bit of a silver lining to him rotting in a hospital so the seat can't be filled. Sure, the Kentucky governor could replace him with a Democrat, but Dems still don't have the votes to do anything meaningful, and it might just prop up some awful centrist, or reflect badly on the governor if he selected a lame replacement. Some people say "he should make Thomas Massie senator" but that guy voted with Republicans the vast majority of the time, except for the Epstein investigation and the Iran war. Otherwise that guy is just like the rest of them catering to billionaires and corporations.

I used to think McConnell would be declared dead or leaving office on August 4 but I see benefits to him being absent and occupying the seat without being able to participate and not allowing anyone to step in to aid in the downfall of the US.

Schrödingers McConnell

he’s dead in our hearts. that’s what matters

What is dead may never die.

"Is McConnell dead?"

Yes. Don't let them gaslight you into believing otherwise.

Yes. No. Maybe?

You could probably make a single-purpose site out of that. Currently set to "Maybe" in big text on a flat background.

Remember 4 years ago when people suspected Lizzy Windsor was dead for a few months before she actually croaked? Probably the same sort of thing happening here.

Has Mitch McConnell ever been alive?

I suppose you could borrow terminology from the aviation industry and say he's "incapacitated".