I'm not defending him, because under normal circumstances there would be no reason to "defend" any Barca player.
Dembele played well, played badly, was injured - just like any other Barca players who were liked and criticized, but never to the extent to QUESTION his SANITY, or stamping him being "stupid" - just because some enjoy finding "causes" unrelated to the actual game.
I read the forum daily two years back, when Neymar had left, now I read posts when he might return, but never came across with this type of language, hatred and the possible lowest level of beating up and cewing on the throat of a player, hour by hour by hour, and he is still a Barca footballer, who dreamed about coming here.
If you consider a type of calm and emotionless rationalism as being a "reverse racism" then the entire scenario escapes your senses.
Dembele has been named many ugly things recently, in Neymar's thread BBZ names the entire Barca board as being CRIMINALS, very few people are actually talking about football but almost always take the easy opportunity to open their valves and spread hatred here.
It's very discouraging and dangerous tendency because there is a significant possibility that this season will be worse than people wish for, so what happens in the worst case?