What? I think you need to step out of your echo chamber, I would argue Nintendo is probably the most universally beloved game/toy/entertainment company out there, maybe tied with Lego.
I think it's possible that it can both be true that Nintendo doesn't always treat its fans very well, but Nintendo also makes far better games than any other publisher.
So expanding from that, they (rightfully, from a business culture perspective) don't want their IP being tampered with, nor associated with a product they themselves did not create. Nintendo probably spends a much higher percentage on R&D than the average video game company. They don't want all their efforts to be watered down from mimicry. They don't want someone to see Mario in a meme post on YouTube and associate Mario with that video. They want Mario to equate to the production quality they work really hard to produce again and again.
You're wrong about Nintendo being hated. People love them, because they trust Nintendo. And Nintendo in turn works extremely hard at building and maintaining that trust.
That's a _fascinating_ claim. Just off the top of my head, I can think of Blizzard/Activision and EA who I think of as more-hated (for labour practices and working conditions; and for microtransactions and sequel-itis). I've never heard any opinion below ambivalence for Nintendo, and its fans are rabid.
You are just not anywhere near objective reality [1]. Nintendo is one of the most beloved brands in the western world and I can't even comprehend what echo chamber you are in to think that Nintendo is hated.
There are certainly fair criticism of the company, I believe they are incredibly over zealous about their IP enforcement, but I doubt many people ever think about that when they are getting 100's of hours of entertainment value out of their hardware and 1st party software.
[1]https://www.marketingdive.com/news/nintendo-switch-american-...