Cynicalself777Without a proper home a specie cannot advance
They have homes in the permit locked systems. Their society is bio-industrialized, they grow all things natural way instead of producing them on the factories like humans. But it is somewhat slow and it takes time to crop, and I don't think they concern much of losing their combat ships because they always could harvest more, and most likely their ships are the entities themselves and they do not require living thargoid cmdrs to operate. Thargoids are not losing their subjects in wars and don't make funerals for their ships. They look at the humans and other similar civilizations like something temporary (like locust), they come and go...