wow just wow.... i couldn't DISAGREE with you more in all of the points you made... i guess its just not you're "cup of tea" luckily there is a ton of fans out there and the series was amazing while it lasted but now we get the true FINAL game, (since i will be skipping any MGS not directed by Kojima)

took me some years to get em

It is actually really easy to understand MGS after MGS4, they literally left nothing to the imagination with 4. The downright spelled out everything. 

I mean they are absolutely the best series I have ever played in my life. However keep in mind that some of those games are over a decade old, and so are their controls.

In MGS2, the controls and the camera are fine, as long as you have radar. In fact, I'd say the control are perfect for the camera, which takes a bit of time to get used to but is pretty good when you get used to it. You shouldn't try to play it as a realistic game. Enemies are just as restricted as you are. If you accept the camera as a game mechanic and try to play the game by its rules and not your expectations, it should be fun. If it still isn't, well, too bad, it's not for you. By the way, the enemies don't generally respawn all that fast, so I don't see the problem. If they disappared for good once you got rid of them, the game would get boring very quickly because you still have to play around the same areas.

As for MGS3, the controls are slightly awkward I suppose. It's because it initially had MGS2-like controls. Can't really agree about the camera though, it works just fine with the new controls. Yes, even with grass. I think it adds a nice level of challenge there, and not an unfair one I feel. I agree with critique about the game's interface, although personally I took the clunky interface as a reason to play better so I don't have to use the interface too much.

MGS games have quite a few issues but I don't think controls and camera are one of them, at least to an extent that would have a significant effect.

tl;dr: Play the games by their rules and not by your expecations and it should be a lot better. MGS games have their own specific rules, and as long as you keep in mind they're just games with specific rules instead of comparing them to reality, they should be more enjoyable.

Like in real life: Do you really listen for hours to what your gf/wife says?

The lack of contact is preposterous to me.

I get the idea though, the concept of not interacting, but its a fucking video game.

I never played this series...

Depends on who that person would be at the time. Given I have habit of not listening to a lot of people. 

I play 10+ years old games all the time and most of them aged well so it's not an excuse. The classic Splinter Cell games have great controls for example, I can't get enough of those 4 games while MGS I have to force myself just for the controls alone.