The IT company Mullvad’s founder Daniel Berntsson is behind a giant donation to the populist Örebro Party, which advocates “comprehensive re-immigration” from Sweden. “It’s sad that it’s needed,” he told Flamman.
~ https://www.flamman.se/techprofil-ger-miljoner-till-orebropartiet/
There really isn’t much of a movement other than Örebropartiet, not that i know. The left in Sweden have leaned pretty hard on the globalistic view that everyone is the same, regardless of origin. That has then lead to them being the main party of Muslim immigrants, mainly due to their stance about Gaza. Örebropartiet is very much a small niche. Much like the anarchists or the piracy party.