No, I think force feeding junk food is pretty rare but that seems like a straw man.
Consider children. Their brains are not fully developed and they have little agency in determining the food they have access to. Childhood obesity is on the rise. So blame the children’s choices?
Ok, sure, blame the parents. I agree of course it is the parents responsibility, but the cards are often stacked against parents by big corporations with government subsidies (in the us).
It’s really weird to me to argue that this is completely a problem at the individual level and not a social one—and I see no other way to interpret your comment.