When Did Parasitic Spores Become a Civilization?

“Report, sir! An unknown planet has been spotted ahead!”

“Full speed ahead! Adding another colony to our great E Civilization is a major achievement!”

Meanwhile...

“Ye Ye! Stop being so stubborn! Put down the prosthetic limb! It will destroy you!” Ye Ye smiled calmly. “It's simple. Why don't I become the mother organism?” “You demon! You're a sinner against all humanity!”