Yes, sue them for the letter and for the countless articles but it's the drama, the long emotional, deeply personal statements, mentioning Princess Diana, which surely has to be hurtful to William I think. It's the way they go about things, it's not the way things are done. Yes look to change things but not overnight.
@Quirrelsotherface. Does it not occur to you that Harry likely discussed this with his brother? Of course this is an emotional issue for him - the press hounded his mother to death! And yet you’re criticising him for defending his wife and child against the same. What sort of timeframe for change do you deem is acceptable?? What is the ‘right way’ of doing things?
It seems that your objections are thinly-veiled bigotry against people you’ve decided that you don't Like based on their portrayal in the media (unless you know them personally?) it’s exactly this kind of insidious manipulation of the public by the press that Harry and Meghan are taking a stand against.