6) Yes, but dyed to differentiate himself from Peter, I don't know if during that time of the Clone saga, Ben tried to be different so that people like Aunt May or Mary Jane wouldn't believe that he was Peter. In that I agree with you, there are really many types of red, some darker, others brighter and others that are directly different, leaning more towards blonde as was the case with Lorelei but at an intermediate point like orange.
7) I've looked at some information and I think her name is Runa.
https://marvel.fandom.com/wiki/R%C5%ABna_(Earth-616)
Yes, they talk a lot about Iric, which later leads Alvi to investigate things and discover about his grandfather, leading him to persist in knowing his roots from his mother part. Alvi is a realistic, intelligent and somewhat fatalistic boy but with an innate potential for magic while Iric was more impulsive, hopeful and more believing in his mother. It is logical that they try to change things and Alvi would like to know about the heroic roots of his villainous mother to feel better and overcome a loss that will never be remembered enough. As I said before, Lorelei listened to the story of her father from her sister's lips and has a feeling of relief for knowing that he was a hero although she was still hurt by never knowing about him when she was little, she always felt envious of other children for that Reason, growing up without a father changed her a lot.
Amora does not get involved in Broxton because she believes it is not necessary, also because she feels offended and believes that she was wasting her time knowing that Sylvie was adopted and that it was not even her biological parents who were dead but still Amora help her and believing about the vision of her mother on Sylvie's eyes.
Worrying more about the threat that Morgause posed, Amora would have done something that would have prevented Morgana from killing her older sister and that Sylvie would end up possessed afterwards and causing that in Asgard and taking advantage of moments of distraction due to the appearance of the time vortex, Morgana and Amora worried about the erratic behaviour of Sylvie had to join forces to get rid of her by throwing her into the time vortex, even Sylvie herself would know that something would go wrong because of her nightmares and she would accept her fate to free herself before everything gets worse and hurt unwillingly people she loves, but there are many ways it could get worse.
She could hardly know because Original Sylvie at that time was spending her time lost not being sure of how to get home to Earth and return to her family since she had not had any luck since the Young Masters, she had heard things, rumors that she was able to understand, her Asgardian lisp was somewhat ridiculous and she only managed to people laughed at her when she tried to ask about something but her actions did more than her words and suddenly finding herself with that variant of hers meant asking questions that were never answered only when she was warned that something bad was going to happen soon and after erasing that encounter from her memory, they would meet again the day she was born, which is when she split into two different people within the time vortex weeks later, giving meaning to her existence.
Yes, obviously it is a point that for some reason is difficult when the Asgardians have spent centuries and centuries fighting and that the giants are erased with a stroke of a pen as if nothing had happened, it represents a before and after in Loki's life having to be the one to do it after Thor helps him. May his race be reborn with some help.
10) Me too, and I expect it less and less because if they did it now it would be hypocritical and would show that they have never done anything to care.