I fail to see how, even if The Dalek Invasion was erased, or changed so they would win, it would in anyway erase Susan from time?
As I've already explained to you, that is not what I meant in the first place. That's just your misunderstanding of what I meant. I'm not going to defend a position I never actually took.
Then what position did you take? How could changing events erase her from where the Doctor left her, without erasing him? They always give some kind of explanation, even if it does disagree with prior "canon"
One Day I hope to be the Man my Cat thinks I am
Where are we going? And why are we in this Handbasket?