Prank revisited. WAS: Harry begins to act like someone I know

[snow15145]

No: HPFGUIDX 99156

Pippin said:
Harry agrees with Lily that James was just as offensive to her as
Snape was. Dehumanizing someone on account of sex is just
as bad as dehumanizing on account of race, IMO. James was
behaving rudely whether he used rude language or not.

Snow replies:
Yet! Lily dated James two years later, and married him and became 
part of the Order against Voldemort and his followers, which Snape 
was a part of. (No one, hopefully, can see Snape as being good at 
that point) 
Lily, as I see it, attempted to do what was right, as Harry always 
does, but in the end what was it that Lily said to Snape, after 
Snape's mudblood reply? OOP pg. 648- "Fine," she said coolly. "I wont 
bother in future. And I'd wash your pants if I were you, Snivellus."  
Wouldn't this statement from Lily be just as bad as what James did, 
extremely insulting? (the tongue is mightier than the sword) Lily 
seemed a bit Hermione-ish here. Like don't embarrass me Snape, can't 
you see I am attempting to help you. What follows after this 
statement is directed to James being as childish or as bad as Snape 
is, correcting both of them with the same blow. (quite a woman)
It's almost like Harry protecting Dudley from Dementors. This boy 
(Dudley) caused Harry more harm than enough and yet what did Harry do

protect him. Dudley doesn't care about Harry and yet Harry saved him. 
That doesn't mean that Harry feels that Dudley is a good person. 
Harry, like his mother, just can't see injustice done to anyone no 
matter how much you don't like that person, no matter what they say 
or do to you. But in this respect, where Harry sees his father as 
being bad and Snape as the victim has me extremely puzzled given the 
circumstances of what his mother said to Snape in the end, it all 
comes back to why Harry would be sympathetic to Snape, for me. 

There are a lot of puzzle pieces missing.

Snow-confused