The Official Catholic Church position on this is not the only Christian Chruch which is wrong. We also have the Quakers, Methodists, and others who support this and are part of the “sanctuary” movement.
Nor is this the ONLY issue where Christian Churches have nce again, broken with their antecedents and worked to undermine western civilization. Most of these groups are also doctrinally obligate pacifists or have become so infuenced by the anti-war movement that they are ostensibly so. They are often also opposed to the Second Amendment and to things like Initiative and Referendum.
It is no accident that Islam is making inroads in the west as the western Christian Churches become increasingly politicized leftwards and consequently loose the support of their bases.
You've obviously mistaken the prudential acts/statements of some in the episcopacy with the actual teaching of the Church but then you have no idea what the actual teaching of the Church is, do you?
2241 The more prosperous nations are obliged, to the extent they are able, to welcome the foreigner in search of the security and the means of livelihood which he cannot find in his country of origin. Public authorities should see to it that the natural right is respected that places a guest under the protection of those who receive him.
Political authorities, for the sake of the common good for which they are responsible, may make the exercise of the right to immigrate subject to various juridical conditions, especially with regard to the immigrants' duties toward their country of adoption. Immigrants are obliged to respect with gratitude the material and spiritual heritage of the country that receives them, to obey its laws and to assist in carrying civic burdens.(emphasis added for your much needed edification)