When someone is pushing for our society to destroy, oppress, enslave, or exile millions of human beings, whether they mask their hatred with a veneer of politeness is not really the crux of the matter. It is extremely alienating and hostile to the people they hate and are seeking to severely harm to in any way endorse, promote, normalize, or empower them. That would include inviting them to a conference.
When someone is pushing for our society to destroy, oppress, enslave, or exile millions of human beings, whether they mask their hatred with a veneer of politeness is not really the crux of the matter. It is extremely alienating and hostile to the people they hate and are seeking to severely harm to in any way endorse, promote, normalize, or empower them. That would include inviting them to a conference.