Is Chevy only good at making trucks and suvs?

Is that why all their Sedans except for Cruze and Malibu are going bye bye along with Ford Sedans?

Possibly not

They had a good thing going in the economic, safe, 4-cylinder niche for a long time. The Citations then Cavaliers would run forever. Unfortunately, they can't make money that way.

I wouldn't buy a Chevy car. I have a Chevy truck and a Subaru car.

Why buy inferior for the price?

No, its a matter of not being able to make a profit on them.