"Instead of bowing our heads in submission to thank the One who cannot be seen, I'd like us all to turn and face the generous person/people who prepared this meal for us. Thank YOU for this bountiful feast, for your hard work and your time. And more broadly, let us thank all the others who contributed to this meal: the scientists who developed the crops in labs and fields over the centuries, the farmers who raised this food, the workers who picked, packed and shipped the food, and those who sold it to the people who prepared this food for us today. To all of you, we express a most sincere "Thank You" this Thanksgiving season. Now, let's all enjoy this wonderful meal!"
How about something like that?
