Do you think we should think of the catholic church as a possible ally or would that be counterproductive?

Very unlikely due to how conservative and reactionary the church currently is (they curbed any attempt by left-wing priests to reform the church in the 1970s - 1990s), but not impossible. The church influences the life of many people in the Global South.

Do you think anti-religion is fundamental to Marxism?

Do you think the anti-religious stance of the Soviets was a mistake?

Helder Camara had an opinion on that;

Câmara identified himself as a socialist and not as a Marxist, but while disagreeing with Marxism, had Marxist sympathies. In the Fallaci interview, he stated, "My socialism is special, it's a socialism that respects the human person and goes back to the Gospels. My socialism is justice." He said, concerning Marx, that while he disagreed with his conclusions, he agreed with his analysis of the capitalist society.

"Helder Camara never denied his communist sympathies and he openly supported dialogue with communists. He believed in the Fátima apparitions but he interpreted its call for the "conversion of Russia" as meaning that the Soviet Union would abandon its anti-religious policies but will not be rejecting communism. He wrote: "And what was the appeal of Fatima for? ... Not for the annihilation of the USSR and China, but for their conversion ... In 1967, the Russian Revolution will celebrate its jubilee ... We must accelerate the pace, there is no more time to waste".

In a poem dedicated to French Dominican priest Louis-Joseph Lebret, Câmara states his belief that Karl Marx is in Heaven, and has him decorating Lebret of behalf of Jesus Christ.

If you're interested in the opinion of Catholic Socialists I recommend reading or looking for interviews of Hélder Câmara, Leonardo Boff, Gustavo Gutiérrez, Jon Sobrino. Theres also some left-wing Catholic Priests who got elected as presidents under a Democratic Socialist platform like Fernando Lugo (Paraguay) and Jean-Bertrand Aristide (Haiti).