Not actively pushing back against something doesn't make one "part of the problem". It makes one a bystander, and no, bystanders are not part part of the problem they are neutrals. They could be more "helpful" for our cause if they where not, but they are not part of the problem, they are "untapped potential" if you will.
This kind of rhetoric bullies people into action and even tough I agree that we should push back in this case, this kind of bullying is not okay.