Harry says he took the case against Mirror Group Newspapers to stop "hate" towards his wife Meghan
Yes because a well known way to resolve a conflict is by publicly slagging off the person you are in a dispute with. It's utter madness. He is so delusional it is painful.
I think a big problem is that people who don't and have never worked at or for a newspaper just don't understand how they work. Most of the time, newspapers are writing for their respective audience so write what that audience wants to hear. It's not the other way round where the paper drivers the agenda. I know that does happen sometimes but it isn't common.
To give a simplistic example, the Guardian isn't going to write lots of positive pieces pro-Boris Johnson/the Conservative party because that is not what it's readership wants to hear.
I think Harry needs to realise that - despite his blinkered belief that his wife is a perfect goddess - that a lot of people just don't like her not for racist reasons but because there is a perception that he went from being a fairly happy chap who got on well with his brother and his sister-in-law who had a lot of positive things going on in his life (Invictus, prior army service,,etc) to being sulky, depressed, estranged from his brother, moving country, slagging off his own family, revealing private things about them to make money - and that all of this was provoked by Meghan who appears to have a way of pushing his buttons to aggravate his insecurities and paranoia - particularly around the death of his mother. The way she was immitating Diana's dress and the '2 hour car chase' that wasn't - examples on point. Don't forget prior to all this Harry had very high popularity ratings.
There is therefore (Rightly or wrongly) a view that Meghan has either directly caused or lit a fire that started a rift between two brothers who otherwise seemed close that people who hold that view really don't like. Newspapers (again rightly or wrongly) will inevitably write stuff that panders to that group of readers because it is what some people think.
He just doesn't seem to live in the real world - that evidence about playing up to the media's image of him - ie. because I was written about as a party prince, I will take drugs and more of them - is ridiculous & embarrassing. It reminds me of being at school & the teachers saying 'well would you jump out of the window because Jane told you to?'.
You can't stop people who don't like you criticising you. You can't stop the media writing critical opinion (as opposed to defamatory allegations of fact that are false). You just can't. Even if you wanted as a PR exercise to limit it, the best way to go about that is not to sue and then file a witness statement attacking every aspect of the media.