Constitutions and laws are no protection for scapegoats once extremists gain power. Anyone who knows 20th century history knows where "we must deport these damn parasites" ends.
If they are called "social welfare-Somalis" (where do social welfare-Swedes get deported to?), if they are not included in "the Swedes" and "our own damn people", if "even if they are born in Sweden, [...] they have no natural connection to Sweden. They are not Swedish", then integration is not what he wants.
Ok, but then you're saying Sweden is on the hook, in perpetuity, for an entire family tree of a stream of people that seems to never end unless racists take control of migration (which is what has happened now in Sweden).
Honestly, I really understand what you mean, but offering no solution and then talking down anyone who dares talk about it is exactly how extremists got support here in the first place.
If you're not living in sweden please keep in mind: this kind of demographic change is totally unprecedented in all of Europe and in all of history. In less than a 1/3rd of a generation, a decade, 10% of the population of a country was artificially added.
Such a thing has not happened historically unless a country was conquered. -- even then, it took 500 years for Skåne to be Swedish (in fact, many Swedes joke that they're still Danish). Just to say that a cultural shift of such magnitude is going to cause some tension no matter what, nobody has done it at this scale.
To then have those same people and their children, then, cause a disproportionate amount of violent and sexual crime while also being a disproportionate financial cost to the country: absolutely needs some kind of answer.
I'm not saying that Örebro Partiet or SD have that answer, but I sympathise with people who are tired of seeing this happening plainly with their own eyes, and being branded as racists, fascists or nationalists for clumsily trying to talk about it without the right verbiage because they've never had to exercise these kind of thoughts before.