Not surprising, given the nation is made up of three predominate political parties: UNITA which was led by the late Jonas Savimbi and fought and lost out to the more Soviet-style socialist MPLA whose motto is a not surprising "Peace, Work and Liberty"...that latter one a far far distant third, and the anti-Communist NLFA. The MPLA is the predominate party, so...like most Soviet-influenced socialist parties their opposition to Islam and other subversive religions is not surprising.
But all that aside, it doesn't mean their actions are without merit. All should be in agreement that there is no peaceful coexistence possible with Mohammadan's!