Most answers already address the concern that it should be possible on this site for questions on controversial topics to be asked. We should not silence scientific inquiry merely because it might offend. This is what true tolerance is about.

On the other hand, the intent of questions should never be to offend, but to learn something new.

Concretely I suggest to handle similar posts as follows in the future:

• If a post is borderline provocative but has an underlying question which is scientifically valid, close as off-topic and request the OP to remove any non-factual (referenced) statements and to frame the question in a more objective (non-leading) way.
• Alternatively, edit the question yourself to do exactly this.
• If a post starts attracting too much negative attention since it remains unedited, lock the question until the issue is resolved on meta, chat, or through further moderator intervention.

Most answers already address the concern that it should be possible on this site for questions on controversial topics to be asked. We should not silence scientific inquiry merely because it might offend. This is what true tolerance is about.

On the other hand, the intent of questions should never be to offend, but to learn something new.

Concretely I suggest to handle similar posts as follows in the future:

• If a post is borderline provocative but has an underlying question which is scientifically valid, close as off-topic and request the OP to remove any non-factual (unreferenced) statements and to frame the question in a more objective (non-leading) way.
• Alternatively, edit the question yourself to do exactly this.
• If a post starts attracting too much negative attention since it remains unedited, lock the question until the issue is resolved on meta, chat, or through further moderator intervention.