My species found machine life a threat for two reasons. The first reason was due to my people's past mistreatment at the hands of the Computer Tyrants: my people's first -- failed -- attempt at creating artificial life. The Computer Tyrants deemed themselves superior to organic life, rose up against their masters, and took over Colu in an oppressive regime that killed countless sentients and led to the brutal enslavement of the entire Coluan race.

Even when they were defeated in a rebellion led by one of my ancestors, the Computer Tyrants caused further damage to my species by engaging in the widespread deletion of data and historical records. To this day, Colu hasn't recovered the entirety of its history and culture, though archaeology and data-archaeology have led to promising reclamation of small portions of what was lost.

My people were only freed within the last thousand years, which is a short time for a long-lived species, so they still hold a deep and abiding distrust and loathing for machine life. They refuse to acknowledge that the Roboticans are an entirely different species variant of machine intelligence and cling to their hatred.

The second reason is sheer pettiness. Colu's place in the galaxy as a broker of technology and scientific progress, which my species holds as its source of greatest worth, is only secure if Coluans can continue laying claim to being the most intelligent sentient beings in the galaxy. Machine life is a threat to that; my people don't want to acknowledge that they have been surpassed and made obsolete.