I'm probably about to give unsolicited advice, but ....Can you talk to some people before the meeting so others who are uncomfortable are ready to speak up about their feelings? Prepping for a meeting can help shyer folks express their feelings because they have time to think ahead about what they want to say. You also might talk to the person who chairs the meeting in advance about your concerns. The guild leaders might do better if they have a heads up that some people aren't happy about it. The people who proposed it surely didn't mean to make anyone uncomfortable & it would be best if they weren't surprised during the meeting -- in my experience surprise leads to defensiveness, & defensiveness leads to hurt feelings.

Good luck! I hope your guild can reach a resolution that works for its members.