It seems you´ve suspiciously detailed insight? So if the thargoids are in fact such a low level hivemind we´re lucky as they cannot figure out how to disrupt FSD component supply. It´d be pure accidental coincidence not strategy.
Anyhow please stop slandering the federal navy. As it stands right now a federal vessel has revisited the guardian ruins at Eta Carinae and couldn´t find any clues on your preposterous claim of guardian aggression against the thargoid menace.
The thargoids are a hive mind but far from low level. They have singular intelligence as well, its just that their biology allows for complex hive communication while retaining singular intelligence.
And im going to keep slandering the Federation as much as I want because they shot first in both human/thargoid wars. And that knowledge is publicly available.
The guardians started their war by trying to enslave the thargoids.
The Federation started the war both times by outright trying to kill them.
And the fact that we've had pilots have peaceful interaction with thargoids proves that the thargoids are the victim in these wars.
Also whatever the guardians did to the thargoids scarred their species so deep they remember their technology even after centuries.
For whatever reason what the guardians did to the thargoids is worse than the virus we used on them in the first human/thargoid war.