CathInfo.com

There have been Catholics of ages past who were in favor of reducing Jews to chattel slavery. I guess that's the best scenario for which a Catholic can hope. Or quarantining them somewhere.

"Jews by reason of their fault (killing Christ) are sentenced to perpetual servitude”

68. Jews appearing in public

A difference of dress distinguishes Jews or Saracens from Christians in some provinces, but in others a certain confusion has developed so that they are indistinguishable. Whence it sometimes happens that by mistake Christians join with Jєωιѕн or Saracen women, and Jews or Saracens with christian women. In order that the offence of such a damnable mixing may not spread further, under the excuse of a mistake of this kind, we decree that such persons of either sex, in every christian province and at all times, are to be distinguished in public from other people by the character of their dress — seeing moreover that this was enjoined upon them by Moses himself, as we read. They shall not appear in public at all on the days of lamentation and on passion Sunday; because some of them on such days, as we have heard, do not blush to parade in very ornate dress and are not afraid to mock Christians who are presenting a memorial of the most sacred passion and are displaying signs of grief. What we most strictly forbid however, is that they dare in any way to break out in derision of the Redeemer. We order secular princes to restrain with condign punishment those who do so presume, lest they dare to blaspheme in any way him who was crucified for us, since we ought not to ignore insults against him who blotted out our wrongdoings.

69. Jews not to hold public offices

It would be too absurd for a blasphemer of Christ to exercise power over Christians. We therefore renew in this canon, on account of the boldness of the offenders, what the council of Toledo providently decreed in this matter : we forbid Jews to be appointed to public offices, since under cover of them they are very hostile to Christians. If, however, anyone does commit such an office to them let him, after an admonition, be curbed by the provincial council, which we order to be held annually, by means of an appropriate sanction. Any official so appointed shall be denied commerce with Christians in business and in other matters until he has converted to the use of poor Christians, in accordance with the directions of the diocesan bishop, whatever he has obtained from Christians by reason of his office so acquired, and he shall surrender with shame the office which he irreverently assumed. We extend the same thing to pagans.

70. Jєωιѕн converts may not retain their old rite

Certain people who have come voluntarily to the waters of sacred baptism, as we learnt, do not wholly cast off the old person in order to put on the new more perfectly. For, in keeping remnants of their former rite, they upset the decorum of the christian religion by such a mixing. Since it is written, cursed is he who enters the land by two paths, and a garment that is woven from linen and wool together should not be put on, we therefore decree that such people shall be wholly prevented by the prelates of churches from observing their old rite, so that those who freely offered themselves to the christian religion may be kept to its observance by a salutary and necessary coercion. For it is a lesser evil not to know the Lord’s way than to go back on it after having known it.

http://www.papalencyclicals.net/councils/ecuм12-2.htm