Earlier quoted context omitted.
If I have my numbers approximately right, getting the J&J vaccine is a bit safer than taking a plane trip, while getting COVID is about as safe as taking a trip in the space shuttle.
Your chance of dying from COVID is heavily dependent on your age and any preexisting conditions, so any comparison that uses a single probability for everyone is totally wrong for a very large number of people.
Yes, your risk of dying from COVID varies with age, but not to that extent. Even among children, the death rate for COVID is an order of magnitude over the 0.000015% to 0.000030% chance of death it would have to be for the decision to stop using the J&J vaccine to make sense, based on the numbers we're making that decision based off of. Among the people who are actually being blocked from getting the J&J vaccine (e.g. mostly 20s/30s/40s adults), the decision looks much worse.