If you read this meme without inferring any drama, it's just a dude accurately describing a situation and then exclaiming his confusion for unknown reasons.
Shane is a raging alcoholic trying to drink himself to death. Abigail is most likely the product of her mom cheating on her 'dad' with the wizard. Those are 2 that stand out to me.
The most "drama and toxicity" I’ve seen in the Stardew Community was after the R*ddit API protest, when they were split on wether the sub should stay closed or open back up, but even that was comparatively mild