Ignoring all of your clearly subjective opinions, do you understand something called logical consequence?
Diablo sold 2.5 million.
Diablo 2 sold 4 million.
Diablo 3 sold 30 million.
Diablo 2: Resurrected sold 5 million.
Your statement that people want D1 or 2 doesn’t follow. The logical consequence of a desire for D2 would have resulted in D2R selling far more copies first and foremost. But we know that didn’t happen.
Second, the number of people that played D2 and could make an opinion based on it, is dwarfed by the number who played D3. Market share is irrelevant when it comes to the simple fact that there are not enough people in the world who have played D1 or 2 to match the current sales -that we know about- of D4 if we assume that no one has ever played both. Because of they have played both, then it hurts your stance even more.
Remember, the logical consequence of not having played a game is that you don’t have an expectation of an experience in another game in the series. If you haven’t had the experience then you can’t logically form an opinion on it. You can have an opinion on it but it’s not worth a pinch of salt but that’s an entirely different issue.
So I ask, how is it logical that 12 million people wanted D2 when that many people don’t even know what D2 plays like? They can’t, not possible. A common sense deduction would tell you that.
What does make sense however and has a logical path, D4 sold less because it was advertised as a return to D2. Because the math works when you go from 30 down to 12, but it doesn’t when you go up from 4 to 12. But logic wouldn’t help your case so you stick to subjective comments and irrelevant data hoping to obscure how ridiculous your argument actually is.