According to capcom numbers, it did 2,3 million on ps2

The same number that remake did this gen

http://www.capcom.co.jp/ir/english/finance/million.html

RE0 did a little less than remake back then (and this gen) because the game is a lot worse than remake

It’s like a million times better this way. Some things shouldn’t be changed in classic games, like turn based battles in ff7 (freaking square!!) but changing to real camera angles in a shooting game is an obvious improvement!

Your point was that this kind of camera belongs in the past

re2 and shooter mechanics are like apples and oranges as well...

re2 and re4 don't play the same, and they are using the same gameplay now...

I played the demo again, and I found it easy, 'cause now I can just headshot all the enemies down 

Disagree, I like the camera angle they went with.

Well...

In the past they used 2d for mario... and even though they can make 3d games, they still make 2d mario games

https://www.youtube.com/watch?v=4lYoW3ILxBs

And hackers made it

And he could, and be happy with it like modders generally are.

Foir the most part, if you want all the mods for say Skyrim Special edition, or even Vanilla, you'd need a PC in the end. Just like you'd need one for the majority of games out there that support modding. 

Classic camera was used to make the graphics look good. The backgrounds were static. Which is why they looked so good back in the day. Even gave you an unintended advantage during gameplay since anything you interact with was a lower resolution. For me, using it now would be too restricting,

Until Dawn is not a survival horror action game  in which aiming is pretty crucial since missing too much means in RE2 means getting killed. Until Dawn is a tactical horror game in which you can only can get killed by making a bad choice. The camera worked very well for that type of gameplay. In RE2 I prefer the RE4 camera since it makes you more conected with the protagonists.