Boruto's community is so toxic. There's a difference between liking a series and being unable to handle any sort of criticism. I like Boruto too but Naruto's portrayal has been atrocious, as of late.
It's as though he lost most of his brain cells and is only good at being a useless punching bag. They're clearly doing him a disservice but according to some Boruto gurus, Boruto is flawless and they couldn't give Naruto a better treatment if they tried.
Treating the most iconic and popular character in the franchise like a glorified punching bag not only is a disservice to his character but also a terrible creative decision. It only serves to generate controversy and annoy fans.
I'm sure someone would argue that this is Boruto's series and that he's not the protagonist anymore and that's true but not being the protagonist is no excuse for the author to shit on him. As I said, he's the most iconic character and is bigger than Boruto manga as a whole.
It's possible to write secondary characters without shitting on them. To give an example, there's Roy Mustang from FMA, he's not the main character yet he's badass, competent, and smart, everything Boruto Naruto isn't
If you're fine with the most important character in the franchise being so useless against the villain that he can't even land a single hit, let alone give him a good fight then there's something wrong with you.
It's entirely possible for a weaker character to look competent against a stronger character. There's the Kaguya fight in which he was way weaker than Kaguya yet didn't look like a mentally challenged person who offers no resistance whatsoever.
Last but not least, there's a problem with Naruto's portrayal not just in terms of his fighting capabilities but in terms of his personality and overall character. They're dismissing all his character development and characteristics in order to create cheap, forced drama.
To finish, I'd like to make a rather bold claim:
If you think that they're treating his character with respect and that there's nothing wrong with his characterization, you don't like Naruto so stop deluding yourself and accept that you've never liked his character.
If you think that they're treating his character with respect and that there's nothing wrong with his characterization, you don't like Naruto so stop deluding yourself and accept that you've never liked his character.