The mammoths liked to feed in the periglacial areas. By being right up against the glaciers the were shielded from the north winds, and the face of the glacier reflected sunlight back into the ground. The area near the glacier was much warmer than the surrounding tundra. It was well watered with melt water, and the soil was rich in minerals from the glacial till, and as loose as a well tended garden. Plants that are now exclusively tropical were better adapted to cold and variable day length.
Soooo, a mammoth feeds in the richest local environment, right up next to the glacier, and suddenly there's an avalanche instantly pounding the mammoth into the dirt and packing it in ice...
I haven’t read anything anywhere that remotely supports your points. Are you stating facts backed up by non cited sources or are you stating opinions?