I think the point of the comment you replied to was that you will live until said ages potentially, but the quality of life in the last decade or so will be very poor. Growing up in a society where men drink a lot more than women (at least in my grand parents generation) I can tell you that you will likely also die from alcohol abuse sooner (generally heart attack or diabetes, but that last one also has genetic accelerants), but it is true that the last few years are not pretty.

Edit: when abusing alcohol heavily.