It could mean that in the context of the Merlin fandom, Uther's character is being depicted in a way in fanfiction that is acceptable or even favored by some fans. Maybe the fanfiction shows a different side of Uther that makes his actions more understandable or redeemable, and thus it is seen as approved within the fan community.
One great Merlin Uther fanfiction is 'The King's Regret'. It delves into the complex relationship between Merlin and Uther. It shows how Uther might have reacted differently to Merlin's magic if he had known the truth earlier. Another is 'Uther's Hidden Affection', which explores a more emotional side of Uther towards Merlin, a side that was perhaps masked by his hatred for magic in the original series.
It would be very complex. Initially, Uther would be in shock. He has been hunting magic - users, and now his son is one. But he might also feel a sense of protectiveness. Merlin, on the other hand, would be confused and angry at being lied to about his identity. Eventually, they might start to understand each other more. Uther could see the good in Merlin's magic and Merlin could see the reasons behind Uther's actions, even if he doesn't agree with them all.
Maybe in the fanfiction, Uther discovers the creativity and the different perspectives on his world and characters, and he sees value in it. He might be a more open - minded version of himself in the fan - created stories.
Uther might initially be shocked. He has always been so against magic, so he could be furious at first. He might feel betrayed by Merlin, whom he has known for a while.
There probably is. The Merlin fandom is quite large and diverse. Some fans might be interested in exploring the consequences and emotional turmoil that would result from such a dark event as Uther killing Merlin. You can look for it on popular fanfiction websites like Archive of Our Own or FanFiction.net.
One great aspect of Uther Pendragon and Merlin fanfiction is the exploration of their complex relationship. In the original series, Uther is often at odds with Merlin's magic, but in fanfiction, authors can reimagine their dynamic. For example, some stories might have Uther discover Merlin's magic earlier and instead of persecuting him, learn to accept it due to Merlin's selfless use of magic for the good of Camelot.
Some fanfictions also explore the idea of Merlin as a mentor to Uther in a way. Since Merlin has a broader understanding of the world and magic, he could potentially guide Uther towards a more inclusive rule. This flips the traditional dynamic and creates a fresh take on the Camelot story, with Merlin being the one to influence Uther's decisions for the better.
Well, it could be a culmination of events. Uther's growing distrust of those around him, combined with Merlin's secretive nature about his magic. Merlin might be caught in the middle of a power struggle or a plot against Uther, and Uther, in his quest to protect his throne and Camelot, decides to eliminate Merlin without fully understanding the consequences. This would also create a great deal of drama and conflict for the other characters in the story, which is something fanfiction writers often strive for.
Power dynamics is a major theme. As Merlin is Uther's son, it affects his standing in Camelot, both in terms of political power and magical power. Also, redemption is a theme sometimes. Uther was not always kind to magic - users, and this relationship can lead to a path of redemption for him in some fanfictions.