None of these things have anything to do with left or right leaning. Being racist does not make you far-right, and individuals do not represent the party as a whole. If they did, every party in Sweden would be considered far-right.
But also:
Jörgen Fogelklou, had posted antisemitic and racist statements on social media,
As far as I know, this was never proven to be him, as it was comments on some account on Flashback.
one party member in southern Sweden, Jonas Lingren
“One party member” that no one has ever heard of does not represent the entire party. You have several “one party member” people with controversal music tastes and ideologies in any party.