Oh bollocks to crap like that!
Yeah - divorce AFFECTS children.
My daughter (5, and 8 months post split) says "I wish my things weren't in 2 houses, and it's sad that you don't seem to do anything with daddy any more". (too right I don't, I leave him to his prostitutes)
It has affected her. It sometimes makes her sad.
But there was no choice, and the alternative would have affected her more. Imagine my girl growing up thinking that "normal" in a relationship was 2 parents who never touched, never showed any interest or affection in each other, never had fun together, never did anything together. She was learning what a relationship looks like from me, it would have been MY FAULT if she'd accepted that in her own relationships. I used to cry, knowing that, before I dumped him.
Now, she sees me laughing and kissing my boyfriend. Sees him doing stuff for me. Sees me with an expectation of happiness.
The ideal is 2 happy parents that love and respect each other. She didn't have that. At least now she's not in a horribly damaging environment.
Stay strong OP. It's tough, but it's not your fault, and your children ARE fine.
I think most (intelligent) people agree - permanent damage from divorce is not the separation itself, but how the parents handle it.