Marx Is Not Crazy
This goes a long way towards framing Marx as reasonable rather than beyond the pale:
First, read aloud to your class selections from the chapter on working conditions—i.e., about 7 year old kids working 18 hour days.
Then politely say something like the following: “I may be going out on a limb here, but it seems to me that the wrong thing to do when faced with these working conditions would be to give them a thumbs-up, which is what Marx’s opponents were doing.”
Last, ask your students which group they would side with.