Like most things...it depends.

My parents are still alive and I have adult children so I think I have the experience to give a decent answer....

I have difficulties with my parents. But I still respect them. They may have not done a good job of raising me as they could have, but they did the best they could. I was loved, fed, clothed, and raised with values. So they have earned my respect for doing those things. Your parents are doing the best they know how (admitted it sucks...but it's all relative). And my parents did too (I was not born and then chucked out on the street like an animal).

I made mistakes with my children...most likely they will blame me for lots. And some of it probably was learned by me from how I was raised...HOWEVER I have my parents to thank for those things which were wrong, that I realized, and did NOT do to my children....their mistakes with me were NOT repeated but, rather, learned from.

Now, as a parent, I think I am due a degree of respect from my children. To what degree is up to them. I hope (and it is so far) it's a decent amount.

So. Those are my thoughts as both a daughter AND a mother.