If you no longer like to watch Pokemon, you are in no means obligated to watch it. I'm sure we all grew up with a certain generation (the first one lol), and we might no longer appreciate the show/franchise as much as we used to, while others continue to enjoy it or new fans are born.
If My Little Pony took a similar path, would you wish for it to just stop even though the franchise is no longer what it used to be? Maybe, but why upset others by wishing the show to end when you can stop watching it (unless you feel like the new hypothetical stuff gives MLP a bad name)? There's always the chance in the future that things could improve and Pokemon will swing back up (if you think it's in the ditch right now..I mean, why wouldn't you think that? There's apparently a garbage bag pokemon!...but no cockroach pokemon, Y U NO MAKE COCKROACH POKEMON??!).