They were brutally murdered for being communists. They would have been murdered regardless of their faith. I’m not shunning Christians but you’re not gonna get me to support Christianity.
Christianity wants me dead, it explicitly says that in their holy book. Find me a Christian that says the Bible is wrong. I’ve spent decades dealing with Christians who weren’t afraid to make that known to me, so excuse me if I’m not all sunshine and flowers about it.
You have to work religion into progressive politics currently because it’s a practical necessity. I’m not a utopian so I accept that it’s the reality.