Forget that. Imagine simply the common trooper with full gear, carrying anything from 20-30kg on his back, plus personal weapon. And, if I remember correctly in german infantry squads, all the extra ammo belts for the MG34s...Good points
Getting horse down artillery and tanks across in barges or small boats is . . . A more difficult problem.
I know, but the... person's point was that "small boats= barges so it works"...Not to mention most of the men were taken off on steamers or destroyers and smaller warships, not the courageous small civilian craft that get hyped up so much.