In the long long ago, in the before time, when a new manga, or anime became popular it wasn't long before the fanbase formed. These weren't your fanbases of today, these were communities to soak up everything there was to their favorite sgow. There was competition and cringe yes, but it had honor, there were boundaries. It was like this for decades.
Then Rick showed us how much he loves Szechuan Sauce and McDonald's thought Rick and Morty was any other fanbase. They were wrong. Now a fanbase is just another segment of the population which can be marketed to and have wealth extracted. Another thing that can be packaged up into a product or video to maximize how much of your money or attention they get.
We're Rick and Morty or McDonald's to blame? No, they were only doing what everyone had been doing for decades. No, the world is different. The shows are different. The whole business is different. We the fans are different. We have to take our favorite thing as far as it will go to get as much as we can, boundaries be damned.
Now I follow the same path you do I...
...don't really care who else likes it though.
Actually they can sue you. Anyone can sue anyone else over anything. It's whether the lawsuit or not has any merits and will be carried on is what decides that. If you have a lot of money and want to fuck over a poor person sue them for nothing. The poors still have to spend all their money defending themselves against nothing or else they're in contempt of court and you get the satisfaction of destroying them financially forever. No crime, but the poors still get punished.