Pelagius, a Welsh monk, began this teaching that bears his name. He denied that we inherit original sin from Adam’s sin in the Garden and claimed that we become sinful only through the bad example of the sinful community into which we are born. Conversely, he denied that we inherit righteousness as a result of Christ’s death on the cross and said that we become personally righteous by instruction and imitation in the Christian community, following the example of Christ. Pelagius stated that man is born morally neutral and can achieve heaven under his own powers. According to him, God’s grace is not truly necessary, but merely makes easier an otherwise difficult task.
My understanding is that you have posted the Augustinian viewpoint of Pelagius....Augustine took Coelestius' positions and applied them to Pelagius.
Pelagius' views that are in this article are not the same as you posted.