"Because they, like Ms. Cochard, truly believe in what they advocate for. I'm sure of it. But, given their limited resources, they have turned to unsavory methods, like trying to drag Ms. Cochard's name and the entire ethocampaign through the mud. In these efforts, they've resorted to accusations that are cowardly as they are outrageous: that the ethopoliticians are only campaigning for the banning of VE in order to extort and exploit those involved; that Ms. Cochard herself has gone to extremes to keep all of her illegal activities a secret." You pause for effect. "No sane person would believe any of that, of course, but can you really blame the desperate for using the only means they have been left with?"
Almost there. Now, for the final act.
"So what are you going to do?" you ask.