You are 100% correct. Our exWs made very wrong choices which hurt us, our immediate family and friends. They did that of their own free will knowing exactly what they were doing.
I agree we can all rebuild from the past. I personally know it is very hard. The most difficult thing I have found is really letting myself go and loving again. I feel like what my exW did tainted my view of love forever. The innocence and joy of love are gone. I think I will forever see it as another "business" arrangement void of deep emotion. That is just the way I feel now.... It is what it is...
Take Care,
RMG
"The bad things in life open your eyes to the good things you weren't paying attention to before." from "Good Will Hunting"