KFML was oriented towards the People's Republic of China and Marxism–Leninism as interpreted by Mao Zedong, commonly known as Maoism.
KFML had a very important and leading role in the mass solidarity work with the Vietnamese people.
In 1970, a left wing faction based in Gothenburg broke away and formed KFML(r).
[2] In 1980, SKP suffered another split, when a group of critics were expelled on the issue of China.
Vietnam, which had meant so much in the solidarity work of KFML/SKP, and Cambodia, "their" ally, had become involved in the Cambodian-Vietnamese War, fighting against each other.
And SKP, who had succeeded in getting famous in Swedish politics, had not been able to expand and get more than fractions of a percent in votes.
From 1982 and onwards, they supported the Swedish Social Democratic Party in the national elections.
It is probable that the name was inspired by the Polish Solidarity movement under Lech Wałęsa, as the party supported their struggle.
The Mariestad branch had objected to the decision by the congress to remove the ban on local organizations to receive government financing.
In Katrineholm, the party contested on the list of "VPK-Kommunal Vänster", together with VPK, SP and independents.
By this time the party had only a handful of functioning local units, and there was a strong trend towards dissolving the national organization and let the local units continue to function on the municipal left in cooperation with other forces.
Notably the congress opposed the party line of voting in favour of the Social Democrats in the upcoming elections.
A resolution adopted by the congress read "...none of the parliamentary parties will fix the future of the Swedish youth.