Why do I say that?
First, the risk of exposure for the base is minuscule, almost negligible. It has been operating for decades; if it were to be exposed, it would have happened by now.
Even if it were somehow exposed, with the Zhu Tian Ruins Market present, there would still be a way out. All he would need to do is stay in the market for a year or half, by then the senior family members would naturally have arrived.
Secondly, Song Chao is his father. If both father and son were to leave, while leaving Song Lin or Song You here, that would inevitably be unreasonable and might even cause dissatisfaction on the part of the elder uncle.
Based on these two points, no matter how you look at it, his decision to stay is the best choice.
Song Chao didn't say anything, but he felt a slight relief in his heart, reassured by his son's understanding, yet his gaze grew more grave, reflecting his concern for Song Chi's subsequent safety.