But let's put aside the inconvenient facts for a moment and enjoy this depiction of giant Frenchmen building a fort in the mid-1500's:
Giant enthusiasts will immediately note the size of the men constructing the fort in Le Moyne's illustration. The fourteen men (who apparently arrived on the island in the two open canoes) are as tall as the trees and tower over the walls of the fort they are building. They're so big, in fact, that it's unclear to me why they would even need a fort to protect themselves. What are they afraid of? The walls and moat are clearly not built to keep out other giants, as it's pretty obvious that our French giants could just hop right over them. The best I can come up is that these French giants must have been building this fort to protect themselves from the normal-size native population. One problem with this idea, however, is that Spanish accounts from this same region describe the indigenous peoples themselves as being "giants." So the giant French were trying to protect themselves from the less-giant-but-still-giant Native Americans. Or the Native Americans were normal-sized and the Spaniards were super small.
Or maybe not everything in these depictions is accurately scaled and represented.