You say that as though there aren't far more posts on the front page of lemmy right now trashing sync than those praising it. Most of the discussion around it is people trashing it, not people praising it
Let people use what they like and get over the fact that not everyone wants to use the same software as you. The fact that you feel the need to block people because they enjoy a piece of software you don't like says a lot more about you than it does about anything else
I really don't get why so many people are so bent out of shape about an app they don't even have to use,