What would you do if you were in the position of the buggers and their invasions?

Do you mean if I were a bugger? If that's your question, I would have annihilated Earth when I had the chance. Earth was initially outmatched and humans were clearly not to be trusted. If you mean if I were a human, then it would be different. The Buggers were clearly more intelligent. It seemed that nobody tried to communicate with them on a meaningful level. They should have tried that first before training small boys to be little sociopathic killers.