@ArthurTudor, Sweden has been very, very socialist, to the point that I now see some 60-80s policies as more communist than socialist.
The whole foundation of the country was to build a communal society, to educate democratic people and to ensure that everyone had a chance to be part of society. Education was extended massively in the 1960s, one group that benefited a lot was people who had not been given a chance to study when they were young - adult ed was very, very big. Community cohesion was a massive thing. Sweden was an ethnically very homogeneous society: most people did the same thing, wanted the same thing etc. The difference in salaries between best paid and worst paid was much lower than in most other countries.
Since the 90s, things have changed a lot. A very large number of immigrants (I think about 20 % of the current population were born abroad, or have parents who were born abroad) in the 1990s, tied with a financial crisis, led to massive pressure on the systems and councils cut down a lot. A changing education system, where publicly funded free schools opened, led to an increasingly segregated school system. Marketisation and new public management led to a lot of changes.
The difference in income and life opportunities have increased massively. The social democratic party (left wing) has lost a lot of support - they received 50 % of the votes a few times, and 'normally' around 40 %, but over the past few elections they've been on 28-31 %. The right-wing has changed too, with a populist immigrants-out party now being the third biggest party (about 18 % of the votes).
People's circumstances are now very different compared to earlier. This has led to a weaker support for 'community' and resourceful people increasingly stress 'my rights, my choice' in a way that was unheard of 40 years ago. The election next year will be very interesting - views are much more polarised than they 'used to be' and the proposals for how to fix the issues are very different.
One issue is the rise in crime and gang related crime. Over the past year there's been more than one shooting a day on average, mainly between gangs, in deprived areas, mainly consisting of 2nd generation immigrants. It is easy to see that this leads to more segregation.