I'd say there are subjective and objective indicators of quality, and that just because a lot of people like it doesn't make it a quality product, at least from a certain standpoint. Bud light is not a quality product from a flavor or obedient standpoint, but in terms of price, consistency, and marketing it's great.
But as someone who knows something about ice cream, I'd say B&J is a relatively high quality product. They use mostly good ingredients and that used to be very rare of nationally distributed ice cream.
I'm not entirely sure that aesthetic realism isn't true.
Which, that's not to say that if someone were to have a different taste than the "objectively correct one" (assuming that one did exist) that they would be wrong to have it, but I consider it to plausible that someone's tastes (e.g. mine) could be in some proper sense, "incorrect".
There are a number of topics where I feel like, if aesthetic realism is true, my personal tastes probably do not really match up with the true taste.
But as someone who knows something about ice cream, I'd say B&J is a relatively high quality product. They use mostly good ingredients and that used to be very rare of nationally distributed ice cream.