We don't belong here.

[I_am_not_mafia]

1-To survive the cold, we wear "the hide of other creatures" that  already exist on earth.

No. We wear clothes to be comfortable. Personally I enjoy a naked hike in the mountains in the wind and rain.

2-To eat, we must consume organisms that already exist on earth.
3-To move, we must have energy. Energy comes from eating.
4-To consume life on a big scale to survive, we must use organisms or materials already existing on earth. Imagine skinning a sheep with bare hands.
5-Life kills us. Science proved that we are being pressured by an invisible force called "Atmospheric pressure".

Same as the rest of life on Earth.