Not really trying to argue with you Solidus but what I put in bold requires quite a leap to believe in. I reread it a few times but still wasn't sure if I got it right.
Since the Terminator series doesn't follow the traditional time travel style like in Back to the Future. Where you can literally go back in time in your specific timeline and alter things for when you return to the present time. How exactly does it work? Only way would be involving alternate realities.
So in one reality John Connor already existed(whether it was from Reese being his dad or not) and sends Kyle Reese back to help his mom. Instead of him going to the past of that same reality timeline(like in Back to the Future) he becomes part of an alternate reality, where he kind of starts the chain going with John Connor.
If you feel like taking the time, let me know if I'm way off on that. It always kind of confused me. Same with 12 Monkeys, which also used a Terminator style of time travel. Only way I ever managed to understand it is the whole alternate timelines, sort of like the mess DC Comics got into.
See this is a theroy that many had prior to T3 and T4, and I will say this now, its not a fact, but a know a lot do see the first two explaining this. T1 more then anything clearly was stating this.
First I will say an example of this, it's a crappy one but bare with me.
Let's say my friend comes up to me, and says I tripped on a broom and broke my arm. I feel bad for him so I use my new time machine to try and alter the past so he does not break his arm.
So I go back in time and I'm trying to sneak around so he does not see me, and when I'm trying to make sure he does not break his arm I accidentally *fate* bump the broom, it falls on the ground and just like before my friend trips on the broom breaking his arm. I was always the cause of this, my wanting to change the past was always fate, and so I really can't change it. Because me creating the time machine has always happened. There is no other fate or way things go about. Using a time machine is just part of fate, and no matter what I do, it was suppose to happen that way regardless. Just like Skynet and John creating themselves. Unknowingly to them, but they did, and it was always fate. This part of the story always made it clear to me, that you can't change your fate. No matter what.
Trying to change your fate, is actually part of your fate, you want to believe you can change something, but in reality your just letting it actually really happen, because it always happens that way.
And that is the theory that many T fans, not all, but many did prior to T3 and T4. You can't change your fate, its not a paradox what happens, its just fate. There is one fate, and using a time machine will just push it along, and fate will unravel the same because the time machine is part of the fate. It always has been.
There is an old Twilight Zone episode that had something like this and I can't think of what it was.
But some suggest, as did T1 for sure, you can't change anything, the twist in T1 was that the time traveling did not alter anything, it just made everything go the way it always was suppose to go.
An old Eastern quote said something like, "The more a man tries to avoid his destiny, by doing so it finds him" Something like that but more well written lol. But what it is saying that if you try to avoid your destiny or change it, you really are just letting it come to you and unfold how it always will.
Yet again this is just how I've always seen T1 and T2. I'm fine if some see different, the only thing that irks me is when people lower T1 and T2 and say they are problematic, and not that good so just go with it so they can justified loving T3 and T4. T1 and T2 in their self contained world made sense. But T3 and T4 messed things up in the ways I mentioned above. The changed time....but not really. Altering it slightly just seemed lazy and caused more problems connecting back.
But yet again, this is my view of it.