Wild imaginations:

'I don't want to do it', I offer

'Think', they all remark with grins, 'just come up with anything, anything is acceptable in this case, no matter how bizarre...'

Okay, I thought...and came up with this:

Most people love each other
Most people fight themselves
Most people make love to each other, same and heterosex
In most quarters, these get both reactions: acceptance and unacceptance
If humans can do these, why can't humans gladly eat each other?
Yes, killing is wrong, but people still kill
They say cannibalism is wrong, where are the cannibals? Why are most of them in hiding? Why can't they be allowed to also exercise their freewill?
There's gay and lesbian rights; why can't there be 'cannibal rights'?
Instead of killing indiscriminately, how about allowing the cannibals eat humans that are not fit to live?
And what is the yardstick to determine who is fit to live and and who isn't?
If that's the case where we decide to eat each other, we'd all kill ourselves off the earth...
In the end, how do you rationalize this...?

"Where in hell did you get that from?"

"I told you I didn't want to do it..."