So, you can read, but you choose to ignore everything that doesn’t support your opinions. Classic neckbeard!
Yes, revenge is sometimes the driving force - but since you didn’t read any of what was linked with the intent of absorbing information contrary to your existing opinions (or the direct quote I provided), the evidence specifically indicated that abuse/maltreatment is often* the driving force
*the word “often” means it is more common, or at a greater rate than other occurrences.
Hope that clears things up for you!
Now go apologise to your mother for how you are, and try to disappoint her a little less mmmkay?