Understanding our past and knowing we did some pretty fucked up shit isn't hating the west, its dealing with it and learning from it. I think you would agree that how Germany has dealt with their past is good compared to sweeping it under the rug and saying that while Hitler did some bad stuff he had some good points.

There's understanding and recognizing past errors, and then there's developing an actual negative view on the whole of something. Germany is a good example of that as well. Pride and patriotism became such dirty words that nobody dares use them, even if it's in a balanced way. And as we can see that then leads to extreme counter-movements. The West and its institutions in general definitely went overboard on painting their own countries, religions and institutions in an almost exclusively negative way, which is basically cultural suicide.

The way Germany has "dealt" with its past is by trying to commit suicide, and they are attempting to pull the whole rest of Europe down into hell with it.

After recognizing that they have done evil, they have proclaimed that nobody can do good. After recognizing there are wrong things to do, they have proclaimed that there are no right things to do. After recognizing that patriotic people can do evil things, they have proclaimed that patriotic people can only do evil things. After recognizing their reason for being was evil, they proclaimed that every nation's reason for being is evil.

Germany has not dealt with its past at all, which is why all their conclusions are lies. Their conclusions are designed to erase their own culpability. If all the world is just as evil as them, if everything is a gray and there is no good and evil, then how can they bear any responsibility?

Even discarding their obvious moral failings, just as a practical matter, the recent leadership of Germany has been disastrous for the European continent and has resulted in wars and economic disasters.

A single-sided focus on the negative aspects of western society and its actions combined with a Rousseau-inspired 'noble savage' attitude towards non-western societies is hating the west and is most likely what the grandparent poster refers to. All the vices attributable to western society - slavery, colonialism, brutality, sexism and all the other -isms - can also be attributed to other societies but these go mostly unmentioned or are mentioned in passing without leaving a mark while they are portrayed as being essential elements of western cultures.