The Catholic vote won’t change, it will continue as it has historically, the majority of the Catholic denomination’s members will continue to support the democrat party.
Not the leading edge of the new American Catholics. That is conservative in general and staunchly pro-life, at the time when the Democrat party has gone off-the-cliff pro-gay and pro-abort.
The bulk of American Catholics still associate the Democratic party with the ethnic working class. That association is a relic of the past and it will change.