You are correct with those statements.

I was refering to a video on instagram where two men approach one of the masked guys torching cars and confront him as he was a bit separated from the group of other young men and it turns out he is not a young immigrant, he manages to esccape with the rest of the guys. (I belive it was somewhere in Göteborg)

I could not find the clip by searching but I remember this was just before the election 2018.Today I had a deep dive in my instagram messages as I had sent the video to a friend but the account with the video was no more on instagram thus without evidence I can not back up my claim and have to take it back.

I only found this article of recent event but this is not the one I thoght of. Nor do I think this group represent right wing politics even if they have connection to it.

https://www.svt.se/nyheter/lokalt/helsingborg/svenskledd-764-cell-bakom-flera-bilbrander-i-angelholm