So what? This is just indicative of the support that the USCCB has for the liberal Democratic agenda. With the exception of reproductive matters the USCCB's stance on issues could have been written by the liberal wing of the Democratic party.
The Catholic Church’s stance on issues predates the liberal/progressive Democratic Party by more than a few years. It is part and parcel of Church teaching at least since Rerum Novarum which was written both as a concern for the poor and the workingman and as a guide for defending against the extremes of Marxism and Socialism.