JRPGs are dead. And the reason for that is that practically there is no good JRPGS releases anymore.
All good JRPGs still date SNES, PS and PS2 times. You go to the JRPGs top list, all top games are still the same classics. Nothing changed in the past 20 years or so. No good JRPGs have been produced since FF10 and FF12. The top 10 are sill led by Chrono Trigger, FF6, FF7 and FF9.
But on PC is a different picture. We have got Divinity 1/2, Pillars of Eternity 1/2, Mutant Year Zero, Baldurs Gate 3 is coming, and so on.
What are the main reasons of death of classic JRPGs?
1. Cliche stories about a small group of heroes fighting an evil empire
2. Linear story lines. Lack of choices.
3. Linear RPG leveling
4. Repetitive combat
5. The same cliched characters
6. Atrocious linear level designs
7. Lack of good loot. Loot just to match the level
8. Big chunk of a budget goes to the cutscenes
9. As a result low sales in general.
Why Baldurs Gate-like RPGs are reliving a new Renaissance on PC?
1. Mature story lines with multiple endings, choices affect story
2. Varied tactical gameplay
3. Multiple RPG classes and flexible builds invite experimentation and replayability
4. Darker, deeper and more interesting characters
5. Varied levels.
6. Loot became part of the gameplay. Introduced rare loot and epic items that affect stats and combat dramatically.
7. Lower budget as it doesn't rely on cutscenes, but most of the budget goes to the gameplay and story telling.
8. As a result decent sales on PC
Classic JRPGs are dead because Japanese developers couldn't evolve and adapt to the changing times. If you played a few classic JRPGs you basically played them all. That's the biggest problem of the genre.