Why do liberal Christians always complain about fascism or capitalism, but not say a word against communism?

I read a lot of theology books. I often find that liberal-oriented Christian scholars are more political than conservative Christians (who put more emphasis on evangelism, missions, and individual salvation). I find liberal Christian scholars hypocrites. They will write all day long against the evils of fascism and exploitative capitalism (which are evil, btw), but won't say a thing against totalitarian communism/socialism. Also, they support unions (which is against God's word), but will fight against fundamentalists who are against abortions. They are hypocrites. I believe that non-conservative Christians are hypocrites and false believers. They will meet their end in hell.