Karo --
First, Welcome to MB -- I'm so sorry for the mess in your life that's brought you here but I'm glad you've found us.
Next, let's get you moved to a more active forum. As with most other MB'ers, I don't come in this one very much and was disturbed to see that you had posted this way back on Nov 16 and no one had yet responded. Please re-post this on General Questions II (the most active board) or Emotional Needs -- that'll get you some action.
Now, "Am I wrong?" -- No, emphatically not.
"What can I do to change something I cannot see or recognise before he does?" -- Nothing, those are his issues, not yours, even though be extension they become yours. Will he work on his isses? Who knows? Can he, should he -- yes!
"Will I pay all our married life for the insecurities he has dragged with him from childhood?" -- Unfortunately, that's a possibility. My W has allowed her insecurities to build up to a such a point that her only perceived solution was to break up our 19-year marriage with an EMA. Who pays for her problems? -- we all do, every minute of every day.
"Will our children pay for it when they marry?" -- yes, but they can rise above what they see and live and overcome these immense obstacles. It's much, much harder than having had a solid and loving marriage role model, but it can be done. I think about that all the time for my daughters.
"How can I change it?" -- Love, time, and patience.
Sounds like you've got a good grasp of the situation, even so far as questioning whether it's a marriage that wants to be saved. I think you need to try whether he does or wants to or not. With something as vitally significant, you will want to be able to say that you did everything you could, that you gave it your very best shot.
It hurts and I can feel that pain right through your words. Please post again (try GQII) and I'll keep an eye out for you both here and over there.
You have to hang in there, Karo, too much is at stake here not to...
Ammon