I do think it's got to be wildly individual. I have 4 and I am sure it's my interactions with them that they have been 4 for 4 with diagnosed anxiety disorders. It wasn't a conscious choice to bring them into the world to pass on some dreadful defect, although gosh, there's no word for the guilt across the board with this. The anxiety disorders manifest variously and are controlled variously- I think will be overcome variously also. That's the bad news, since this must be where the wildly individual part comes in. Kids are kids, which means individual people in the end. Despite my PTSD they took their strengths and ran with them themselves. 2 are out of college, one went further, the 19 year old is doing well 2nd year there. Who knows about 12 year olds but he seems ok on those tracks so far. This isn't patting myself on the back, it's children of a PTSD parent who didn't do well 'regardless', they just plain did well. I was a single parent for most of these years so this was in no way due to support from any of the previous drips I dragged into their lives, either-they did it themselves. This might sound simplistic but honestly? All I feel I did was love them, gave them some basic inviable boundaries and rather expected they'd end up where they are.If you asked them, they'd say they're happy people, too.
There really are way too many variables with this to make a call on whether or not to have children if one has PTSD- I just don't think it has to necessarily preclude one from having a family, that's all.