Some people liked Dawn or Portrait and even judgement. I had fun playing Dawn and Portrait, I didn't playing LoS. It's how it is, nothing immature about it. I'm sick of the concepts they tried, sick of the storyline, sick of the ambient music. I don't want it to continue.
Some people hated Dawn and portrait and did not enjoy them as much as their predecessors. portrait in particular infuriates me because of what a cheap soulless game it is, riding on Bloodline's name, and relying on people buying it because it's a sequel to a game it does NOT honor. And I really disliked the way Castlevania sounded on the DS. Dawn of Sorrow's soundtrack grinded on my ears way harder than it should have. I think in fact, Aria, despite inferior hardware, sounded better than Dawn. In dawn, you could have told me Michuru Yamane was not involved at all, and i would have believed you. I was also sick of metroidvania. I lied it. But IGA drew it out for far too long. I enjoyed LoI for not being a Metroidvania. It was a dungeon crawler beat em up, kind of game, and I was happy with that change of pace.
Then Curse of Darkness managed to mess that up, and Judgement well, to be fair would not have been nearly as bad if not for the art style and redesigns-
The Adventure Rebirth caught me by surprise, and I loved every second of it. Classicvania reborn? what miracle is this? then came Harmony of Despair, and proved that IGA was just out of ideas. I never asked for a multiplayer Castlevania. I never asked for all the music to lose all charm and become generic rock, or for the levels to be the frankenstein copypastes they were, or the fact that they tried to actually integrate plot into it unsuccessfully.
Then LoS happened. And it was so different from what we were getting that it was a breath of fresh air. I didn't care that the trailer lied about Dracula, I enjoyed the story as is. It was actually fairly standard for Castlevania. Belmont's wife is taken away, (this time killed and not kidnapped) And Belmont sets out for revenge against the evils of the land that caused it. The game was not all inside the castle! it was familiar classicvania areas! the castle itself was cool and big! Satan? What? Wait is that Jason Isaacs? Awesome! Well fuck it, let's kick his ass anyway!
the plot twist at the credits was pretty shocking, if not very bizzare, for a Belmont to become Dracula- It's about on par and actually almost worse than Legends making Dracula the grandfather of Trevor, but I was curious as to where they would go with the story. It was pretty cliche, And pretty much identical to LoI, which itself ripped off the Coppola movie. Only it fused the mathias and leon characters together. moF had a strange out of order story, but it was interesting enough. Simon was great, he was Simon just like right out of the NES days. muscles, barbarian look, a BEARD! and even a leather whip! Which then upgrades to chain! Alucard? there's Alucard? Alright, lets' get to the chase on this- we all knew the plot twist and it was silly. Though Alucard's story was also pretty standard. '"I hate you vampire dad! Im gonna be your opposite!" And aside from his bare chest and pale blueish skin, he looked pretty similar to his SotN design superficially. the came Trevor, the pre-alucard. And while his gameplay was not too thought out beyond "he works like alucard just because", his story was the best of the three. I genuinely felt the feels when Dracula kills him and discovers his identity, trying desperately to revive him, and failing to do so, gives him a prince's burial within his castle- within what was his own throne room no less!
From there, i was just really intrigued by the new take on the mythos and franchise. LoS2 definitely did not live up to it's hype, but I enjoyed it for what it was. a different vision of castlevania than what we had been getting.
Now look at me, i went off on a wall of text.
my point being, I, and many other people, feel the opposite you do about the DS games and the LoS games.
there's absolutely nothing wrong with disliking them. That's your right to do so. But at least try to understand that some people just feel the exact opposite.

And they didn;t quit when push came to shove and they didn't quite get what they were expecting, or wanted. With a fandom it's aaaall about patience.
You think waiting for LoS to blow over is bad, ask Dalkstalkers fans some time how long theyve been waiting for a new game at all!
It's good that you want, maybe you'll get it. It's over for me, though.
Actually, aside from DLC for LoS2 and maybe some side game, I'm ok with it ending. I'd like to see someone else give Castlevania a try. Who knows, It might be 10x better than LoS or anything that came before, and catch both our interests

I'd still like to see a CV2 remake, or well, what MS originally wanted to do, a CV1 remake. In THREEEEE DEEEEE with the same production values that the LoS series had.