Here is a little thing about going green on Factorio. The aliens will ALWAYS attack you and given enough time, they'll expand to your doorstep.

Now, you can keep a low footprint and the critters will be small bugs instead of giant roaches of doom but there is no peaceful solution for it. You can run (as in, build the rocket and "leave" the planet) or you can fight but no matter how green you go, the aliens will always fight you.

Kind of sad there is no peaceful solution for Morgan and her path would sadly doom her in the game. She won't develop fast enough to leave the planet and sooner or later she would need to step up her production because there is no living peacefully with the bitters.