No, that’s the left’s definition of a cult. Would you describe a religion that’s into human sacrifice or genocide of those that don’t believe in it as merely being “generally viewed negatively by others” or is there genuinely something wrong with it?
“And I’m happy to agree that the negativity is often well-justified.” I’m obviously happy to agree that there may be something genuinely wrong with a religion.
Which doesn’t answer the obvious question.
Based on your comments, it appears that you would prefer to have some groups claiming religious status stripped of the constitutional protection given religions. This would of course require some process by which an individual or group would make this determination.
What individual or group would you suggest giving this power to? What is to prevent that power from being abused, possibly at some future date being used to “de-list” your religion?