Why did Jesus kill the Pigs?

Jesus went to visit the Gerasene people to evangelize. These folks were gentiles as evidenced by the fact that they had herds of pigs. The demon spirits obviously did not want Christ to evangelize in this area. So, there game plan was to ask Jesus to allow them to inhabit the pigs as they were driven out of the demon-possessed man. The demons thought process was to inhabit the pigs and to cause the pigs to stampede down the embankment to their death in the water. The demons believed this would cause the shepherds to tell the townspeople of the affair and that the townspeople, recognizing the significant financial loss of the pigs, would ask Jesus to leave the area. Thus, the gospel would not be preached in the gentile area and the demons could continue to have their way with the gentile people. However, the demons victory was short-lived. For before leaving the area, the formerly demon-possessed man now in his right-mind, begged Jesus to follow him as a disciple. Jesus told him to go back home and tell his family what God did for him. Yet, the man instead told the people in the 10-city decapolis about what Jesus did. Thus, the victory belonged to Jesus because the gospel was indeed preached in the gentile area - not by Jesus but by His disciple. Amen!