All my survival gears are extremely lightweight since I need to take care of family while carrying most of the loads (> 40 lb), in case we need to be on foot.

Minimizing non-consumable good can maximize the load you could carry for food and water. Roughly, in my experience, 30% will be water, 15% will be dry food.

For lightweight tent I recommend Zpack or Big Agnes Ultralight series. They are the most durable lightweight tents I have tried. After 10 years they are still strong.

Both are less than 2.2 lb for a 3 person tent or 5 lb for 4-5 person tent. All alpine rated (means sustains strong wind and extreme weather).