Dennis, go to a store that carries these and hold say, a Black Diamond trail ergo cork in your hands.
Your question will instantly vanish, the ergo part of the pole is the thickest tube part, the weakest part of these will always be the bottom, assuming it's a collapsible pole, sections that is.
Ergo handles means the shaft and handle are bent a bit to fit the straight wrist position of your grip, which forms a line slanting slightly in towards your body.
The ergos are really nice, excellent comfort, I just did my first real 8,9 hour a day backpacking trip with mine and was surprised to find that I experience exactly no moments of discomfort using them, and I think the ergo bends help that, since it's such a natural position for your wrists. I kept expecting to get tired or feel the 'weight', but it didn't happen, mostly because there is no weight through most of the stride (actually it's negative as far as I can tell, when you use them right, but that's for another thread).
Once you trip and catch yourself on a good set of trekking poles, solid construction, these kinds of worries are something you will simply not have. I don't know the exact weight physics, but if it catches a significant percentage of your weight, and if your weight is accelerating, that's hundreds of pounds of force on the pole. Compared to a tent, with what, 10, 20 pounds? And in wind, a bit more? Guessing on the tent, but it's not much.