One thing you need to know about Sweden is that the native Swedes are very conformist, support feminism, and take sexual assault very seriously.
John Derbyshire wrote in 2017 that
I am old enough to remember — it was less than thirty years ago — when Sweden's runaway feminism was a standing joke with other Europeans. You stepped on a woman's toe in a crowded elevator; you apologized; she waved it away with a smile; someone said, "That's rape in Sweden!" and everyone laughed.
Immigrants to Sweden, on the other hand, come from countries like Syria and Somalia, where rape is common and unpunished.
However, the very conformist Swedes also have strict laws against "racism."
A Swedish woman known as Linda allowed her photograph to be used in a crime story about a 2005 gang rape of her and another Swedish girl.
A blogger known as Fjordman wrote
Sweden's largest newspaper has presented the perpetrators as "two men from Sweden, one from Finland and one from Somalia", a testimony as to how bad the informal censorship is in stories related to immigration in Sweden.
From National Pulse:
Professors Face Prosecution for Study Finding Migrants Commit More Rapes, by Natalie Winters, December 6, 2021
Professors from Sweden’s Lund University are facing prosecution from the country’s Ministry of Education for their “ethics” behind a paper demonstrating how most rapes are committed by migrants.
Professor Kristina Sundquist and her colleagues are under investigation by the Board of Appeal for Ethical Review, a body that reports directly to the Swedish Ministry of Education, over whether or not they had “ethical license” to handle “sensitive data.”
The data in question relates to the identities of rapists in Sweden, which culminated in the paper “Swedish Rape Offenders — A Latent Class Analysis.”
The published results reveal that immigrants are disproportionately overrepresented in rape cases and commit the vast majority of sexual violence, though the authors did not originally set out to find a link between the variable and rape.
“Immigrants were just a variable, and it turned out to be quite a remarkable discovery as there were many immigrants and foreign-born people in this group,” said Professor Sundquist.
In light of these findings, the Swedish Ministry of Education’s body launched an investigation into whether or not the professor had “ethical permission” to “test the hypothesis if immigrants are overrepresented in statistics on convicted rapists.”
The scientists were also criticized for insufficient evaluation as they failed to indicate how their research should “reduce exclusion and improve integration.”
Professor Ardavan Khoshnood, co-author of the paper, responded by calling the prosecution a “shame,” adding that he and his colleagues – including an immigrant co-author – are accused of “conducting and publishing illegal research.”
“The purpose of the study was not to find out what immigration is like. Surprisingly, this variable turned out to be quite important, and we didn’t know in advance what the study would show. We wanted to create a profile of the perpetrator, to know who the typical perpetrator is,” he added. [More]
So the claim by the professors is that they had no idea immigrants were almost all of the rapists, it's just that when they sorted them by various characteristics that was the big one.
The claim by the Board of Appeal for Ethical Review is that this doesn't help attempts to “reduce exclusion and improve integration." It's not a scientist's job to “reduce exclusion and improve integration," and the results of this study suggest that Swedish public policy “reduce integration and improve exclusion" until Muslim immigrants stop raping people.