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Pelagius held that man could, by the natural power of free will and without the necessary help of God's grace, lead a morally good life; he thus reduced the influence of Adam's fault to bad example. the first Protestant reformers, on the contrary, taught that original sin has radically perverted man and destroyed his freedom; they identified the sin inherited by each man with the tendency to evil (concupiscentia), which would be insurmountable. the Church pronounced on the meaning of the data of Revelation on original sin especially at the second Council of Orange (529)296 and at the Council of Trent (1546)

Yes, and please note that it ends without a clear explanation. Pelagius believed that man could come to God without the help of God's grace. This is very similar to the Orthodox's view that man is capable of moving towards God.

But in the first Catechism that you've posted we saw man's inclination was towards sin. If man has this inclination towards sin, how is it possible for man to ever overcome it unless God gives man the power and ability to overcome it? And if God gives man the power and ability to overcome it, then won't they overcome? Thus the Reformers are more in keeping with this western doctrine.

“”But in the first Catechism that you’ve posted we saw man’s inclination was towards sin. If man has this inclination towards sin, how is it possible for man to ever overcome it unless God gives man the power and ability to overcome it? “”

By giving man a free will to choose ,not by eliminating free will like the reformers wrongfully thought.

More from the Catechism

1033 We cannot be united with God unless we freely choose to love him. But we cannot love God if we sin gravely against him, against our neighbor or against ourselves: “He who does not love remains in death. Anyone who hates his brother is a murderer, and you know that no murderer has eternal life abiding in him.”610 Our Lord warns us that we shall be separated from him if we fail to meet the serious needs of the poor and the little ones who are his brethren.611 To die in mortal sin without repenting and accepting God’s merciful love means remaining separated from him for ever by our own free choice. This state of definitive self-exclusion from communion with God and the blessed is called “hell.”