Au contraire. In our bodies, in our cells, in the atoms, while living on this earth, we need boundaries. If you have two organisms and one doesn't have boundaries, it will be assimilated, develop a function and become an organ inside the other. Look at the birds. Even if they fly together, the sit in groups on different trees. They have hierarchy, some sit highers, some take more space than others, etc.
On this planet, even after death, deep into the ground, that which has essence and force remains separate. Only in your digestive system all the diversity becomes same shit.