Admittedly I had never heard of this party before, but after looking into them calling them far-right seems to be quite a leap. If you didn't know, Sweden used to be extremely welcoming to asylum seekers and refugees about a decade ago. What they got out of it were gangs, their youth being exploited to enact crimes (due to leniency towards minors), and neighborhoods that even the police doesn't dare drive through. Ha…
You're confusing causation and correlation. There are no links between asylum seekers, refugees and gangs, and crimes. What leads to crime is not welcoming refugees, it's leaving people on the back in a state of precariousness.
Criminal statistics and per capita would disagree