world finds out luffy is dragon's son

Luffy would be extremely angry and sad at the same time. He might roar out in pain and frustration.

Well, first of all, Luffy is a very emotional character. When he discovers Zoro's sacrifice, he would probably go into a state of shock initially. Then, his reaction could be explosive. He might not be able to accept it right away and would try to find a way to reverse the situation. He could also start blaming himself for not being there to protect Zoro, which would further fuel his determination to become stronger and protect the rest of his crew better in the future.

The wizarding world would be in shock. People who have fought against Bellatrix would be horrified at the thought of her being related to Harry. The Ministry of Magic would likely be very concerned about how this new relationship could impact the balance of power. Some might think it's a ploy by Bellatrix to gain more power, while others might feel sorry for Harry having such a complex family situation.

Well, if Harry finds out he is Voldemort's son in the fanfiction, it could mean a whole new set of powers for him. Maybe he has some latent dark magic abilities that start to surface. However, he would also have to deal with the stigma. Dumbledore's plans for him would probably go out the window. Harry might struggle to find his place between the light and the dark side of magic. He could try to use his newfound connection to Voldemort to defeat him in a different way, like by understanding his father's weaknesses from an insider's perspective.

The consequences could be various. He might feel a great burden, as if he has to carry the weight of the family's past misfortunes. It could also make him more cautious in life, constantly fearing that the curse will affect his future. For example, if the curse is related to financial ruin, he might be overly hesitant in business decisions.

Harry's reaction would be complex. He has so many emotions tied up with Snape already - dislike, confusion, and a bit of grudging respect in some ways. Discovering he's his father would bring all those emotions to the surface and more. He might go through a period of denial, not wanting to believe it at first. Then, as the truth sank in, he'd have to come to terms with a new family member. He might also feel a sense of betrayal from those who knew or suspected but didn't tell him. And he'd have to figure out how to fit this new relationship into his life, especially considering his role in the wizarding world and his ongoing battles.

Well, this is a really tough situation. The son could initially feel a sense of betrayal. His view of his mother would be completely shattered. He might also worry about how this could affect the family's reputation. He would likely need a lot of time to process his feelings and figure out how to deal with this new knowledge.

It's possible that the baby's parents are from a rival pirate crew. In the 'luffy finds a baby fanfiction', this could lead to a lot of drama as Luffy has to decide whether to return the baby to its potentially dangerous family or keep it safe with his own crew. Or perhaps the baby's parents were victims of a powerful and evil force, and Luffy feels compelled to protect the baby from the same fate.

Dragon saving Luffy would make the World Government see Luffy as an even bigger threat. Since Dragon is their enemy, they'll think Luffy is getting closer to the revolutionary cause, so they'll be more likely to target Luffy aggressively.

In such a fanfiction, Bellatrix might experience a complete shift in her loyalties. She could turn against Voldemort to protect Harry. For example, she might use her position within the Death Eaters to mislead Voldemort about Harry's whereabouts. It would also create a huge stir in the wizarding world, as Bellatrix has been one of Voldemort's most feared and loyal followers. And Harry would have to come to terms with having such a complex and villainous mother figure, which could lead to a lot of internal conflict for him.