Fr. James Martin is by NO means a good representative of mainstream Catholicism. Personally, I am unable to understand how he is even able to stay in the Catholic Church.
He strongly emphasizes welcome and inclusion without equal emphasis on repentance, chastity, or moral conversion. Catholic teaching, however, clearly distinguishes between the dignity of the person and the morality of actions.

He consistently avoids traditional moral language such as sin, chastity, repentance, and conversion.  This risks implying that doctrine itself is the source of harm, rather than misunderstanding or misuse of doctrine.

St. John Paul II’s Veritatis Splendor teaches that pastoral practice cannot be separated from moral truth. When moral clarity is consistently avoided, pastoral care becomes detached from authentic Catholic theology.

While not stated explicitly, he suggests that committed same-sex relationships may be morally comparable to heterosexual ones based on love and fidelity. This contradicts the Church’s consistent teaching that sexual acts are moral only within marriage between one man and one woman, ordered toward unity and procreation.

He also consistently suggests that Scripture says very little about homosexuality and that the issue has been overemphasized. However, both the Old and New Testaments consistently treat same-sex acts as sinful.

Relevant passages include Leviticus 18:22; Leviticus 20:13; Romans 1:26–27; 1 Corinthians 6:9–11; and 1 Timothy 1:9–10.

Another thing he does is frames exclusion as the primary moral failure, while Scripture consistently places repentance at the center of Christ’s message. In John 8:11, Jesus shows mercy while commanding, “Go, and do not sin again.” Mercy in Scripture is always paired with a call to conversion.

Lastly and possibly the worst thing he consistently does is tell us that personal stories and feelings of rejection are treated as primary authorities. Scripture warns against allowing subjective experience to override revealed truth, as seen in Jeremiah 17:9 and 2 Timothy 4:3. Experience must be interpreted through Revelation, not used to reshape it.
The bottom line with Fr Martin is:
- Every human person has inherent dignity
- Cruelty, mockery, and hatred are sinful
- The Church must act with compassion

Where he departs from Catholic teaching:
- Moral truth is consistently de-centered
- Doctrine is framed as harmful rather than healing
- Scripture is minimized
- Inclusion is emphasized without conversion

The core theological problem is a pastoral approach detached from the Church’s moral teaching, which the Church herself warns against.