See post 66 please.
I think too many people misunderstand the J&J vaccine. They think it’s “traditional”. Simply using a different method to force the body to make the S1 Spike protein creates similar issues. Using a disabled adenovirus With an mRNA payload works about the same. Still a partial response to just one aspect/protein of the virus. There are many who think the S1 was a very poor choice to target the immune response.
The one thing I don’t misunderstand about J&J is the use of a fetus.