In a lot of cases, the fans actually cling to the AAA player more than the MLB player, but that usually happens with players a lot less talented than Betts. But then, that’s not even the case with Betts. Heck the Sox don’t even have a replacement for Bradley lined up in the minors.
Really the best comp we might have is Fred Lynn. Not only was Lynn a high performing player, he was amazingly popular. Not sure why he was traded away, especially for that incredibly mediocre package, but the team and fan base survived.
Sox fans are lucky that the team has really always at least tried to put a winning team on the field. They never sold everything off for a bunch of minor leaguers who were 3 to 4 years away. But they are in a bind right now, left with a massive budget and a very, very weak minor league system incapable of picking up the pieces. They need/want to shed some salary, but most of the more expensive players are unreadable. The one guy that they might be able to move and plug a few holes is Betts...