Perhaps Draco realizes that Harry is in a dire situation where he needs the wand to save the day. Draco, having a change of heart, decides to give Harry his wand as a way of contributing to the greater good. This could be related to a looming threat that only Harry can face, and Draco understands that his wand can be a crucial tool for Harry.
Perhaps Draco has developed a sense of respect for Harry over time. He might have seen Harry's courage and determination up close and decided that Harry is worthy of his help. Throwing the wand could be his way of showing that he acknowledges Harry's importance in the fight against the common enemy.
One possible reason could be their deep bond. Naruto and Sasuke have a complex relationship. Naruto has always wanted to save Sasuke from the darkness. Giving his eyes might be the ultimate way to show his loyalty and belief in Sasuke's redemption. It could also be because Naruto sees Sasuke as a part of himself, and sacrificing his eyes is like sacrificing for a part of his own soul.
It could lead to a complete transformation of their relationship. They might become allies, working together against common enemies. The act of giving the wand could be the catalyst for them to let go of past grudges and form a bond based on shared values and goals. This could involve them sharing secrets, protecting each other, and even becoming friends outside of the immediate conflict situation.
One possible reason could be a moment of sudden realization. Maybe Draco realizes that Harry is in a dire situation where he needs the wand to defend against a common enemy. It could be a sign of a shift in Draco's character, from being an antagonist to having a moment of altruism.
In some fanfictions, it could be a result of some magical influence. Maybe there was a spell or a charm that made Harry act this way. Or it could be an expression of deep - seated emotions that Harry has been suppressing for a long time. This action then becomes a way for him to break free from his self - imposed restraints and reach out to Draco in a very physical way.
One possible reason could be that he wants to prove his own strength without relying on a wand. In the wizarding world, wands are seen as a crutch for magic, and Harry might want to show that he can be powerful even without one.
There are several potential themes. First, the theme of identity crisis might be present. Harry, being the one to give birth, would surely question his own identity and how he fits into the wizarding world now. For Draco, his role as the 'other' in this situation would also bring about identity questions. Another theme could be the theme of community reaction. How do their friends, family, and the wider wizarding society react to this? Do they shun them or accept them? And finally, there could be a theme of redemption. Maybe Draco has some past wrongs that he tries to make up for through this new and strange family situation.
One possible reason could be their long - standing rivalry. Draco has been taught to dislike Harry from a young age due to their family differences. His pure - blood supremacist upbringing might make him reject Harry as a mate because Harry is seen as a 'Mudblood - lover' in the eyes of Draco's family and their circle. Another reason could be fear. Draco might be afraid of what the wizarding society would think if he accepted Harry as his mate. The wizarding world has its own set of norms and expectations, and a relationship between them would be highly unconventional and likely face a lot of opposition.
One possible reason could be a sign of extreme loyalty and friendship. Naruto might see Yang in a dire situation where she needs his arm for some crucial purpose, like to complete a powerful jutsu or to defend against an overwhelming enemy. He is known for his selfless nature, so sacrificing his arm would be in line with his character.
One reason could be Harry's pure heart. The Elder Wand might be attracted to his selfless nature. Another could be his connection to Voldemort. Since they are linked in many ways, the wand might see Harry as the key to resolving that conflict.