Feeling guilty should only be the first step, to be followed by actions that lead to a change in culture and how we interact with members of other communities.
Example: anthropology students diving into old archives of human skulls with racist ass labels attached such as "adult male of the negroid type, Congo basin, 1889", sifting through written documentation with the goal to find information on the person's identity and community the remains were stolen from, putting in motion a potential repatriation of the remains.
When we remain in the state of guilt, we eventually ease into self hatred that leads to nothing our relationship with other cultures would benefit from. Which is why naming white guilt matters.
It's pervasive to feel perpetually guilty of something we, personally, didn't do and had no influence on, it soothes our ego to cultivate a personality that constantly wallows in guilt and puts our own heritage down because it's easy to satisfy our sense of guilt by simply repeating "we are guilty and evil and our heritage is to blame" ad nauseam.
Furthermore, it allows us to leave the deeper questions unasked, such as: "how does colonialism begin? Why did our ancestors benefit from it? How does it affect the victims and their views on us?"
By going the easy way and looking for the cause exclusively within our very own culture, without taking into account the multiple other instances of colonialism and imperialism worldwide, we deprive ourselves of the ability to learn about the psychological and sociological mechanisms inherent to entirety of the human species, thus doing both ourselves, the descendants of the people we colonized as well as all of humankind a big disservice.
The evils of colonialism and imperialism must be tracked down to its root, only then is a future possible where the horrors of the past are not perpetuated(or less perpetuated. China and Russia are catching up rapidly and these two being much better than the Europeans simply because it's their first time doing it is not a rare stance among Africans in Africa). Both by our own group of people as well as others.
ending with "the world is a better place" after depicting his death could be read as an incitement to violence if one realy wants to go out of his way to read it like that.
One has to act in extreme bad faith and rip partial clauses away from their context as well as the rest of the sentence to interpret it that way.
Read my response to Logiko above to see where I'm coming from.