Intentionally killing this life outside of acting to save another life directly is a grave and mortal sin.
The enemies of the Church wish to spread confusion by getting catholics to buy the idea of life being defined as a “person”, and then getting lost in the weeds of the definition of person.
A “personality” requires a functional brain to develop - an organ, like all of the others,that an embryo has not developed yet.
Human life does not depend on the presence of a personality (which is implied in the term person), because its presence and value dies not hinge in having a specific developed organ - in this caee the brain.
Human life. Is present when the embryo forms at conception and is imbued with a soul.
My experience had been that those misrepresenting the Church on abortion often have a lot a personal stake in the issue. But you can’t argue with God Nd the Church doctrine on this is infallible snd unchanging - even liberal Pope Francis strongly upheld this.