I doubt it. Most of the people I know, especially Catholics, strongly religious at that, support Biden because they have managed to be convinced “Even Pope FRANCIS said so” that abortion is just ‘one of several’ issues, and that Biden and the Democrats support so many OTHER wonderful Catholic issues like social justice and equal rights and help for the poor, and that abortion is ‘already going down and has been for years anyway’. They are convinced that Trump is a thug, a bigot, and a lying hypocrite, and has ‘done far more damage with his attacks on blacks, Latinos, migrants, the poor” etc. To these people, Harris is another example of the wonderful saintly Democrats and their support of anti racism, anti sexism, etc. Remember a lot of these people are Mario Cuomo Catholics, they proudly support that they would never personally have an abortion, but would not ‘force their beliefs’ on other people.
The Democrats have, in the eyes of many, cemented their perception of the tolerant, diversity-loving, ‘care for the people’ persona with both the former Vice President under an earlier success “Our first Black president” and now a woman of color as vice presidential candidates.
Unlike Hillary, who ruined herself with her entitlement rhetoric, Ms. Harris is able to come across not as ‘getting what I’m entitled to as a woman, you OWE me”, but as a trailblazing pioneer, building on months of waves of ‘addressing racism and sexism’ to present herself as a humble, “yes, when I was young I was told to reach for the stars; I stand here and hope and trust that I will be the FIRST woman to achieve this office and thus light the way for young women of color everywhere”.
Remains to be seen if the strategy works.