In reply to your 2/13 post Donna Danna re Apostasy in the Church (fivedoves.com) you stated that the falling away or future apostasy in 2 Thess. 2:3-4 relates to Israel before the Christians are gathered together to meet Jesus in the air.   (2 Thess. 2:3-4, "Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition; "Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God."

However, the Jewish believers have already fallen away from their faith in Judaism just like Apostate Christians have,  There are Orthodox Jews, Conservative Jews, Reconstructionist Jews & Reform Jews, and here are their views on homosexuality at Jewish Views on Homosexuality | My Jewish Learning which shows that they all don't believe that homosexuality is a sin. There are even Orthodox Jews that are homosexuals according to The Gay Orthodox Underground | My Jewish Learning and The Closeted World of Gay Orthodox Jews: A Review of "Trembling Before G-d" (jewishvirtuallibrary.org)

As for abortion, here are their views on abortion at Judaism on Abortion: Historical and Current Teachings (hli.org) which shows that they all don't believe that abortion is premediated murder which is one of the 10 commandments.

Therefore maybe the apostasy will be worldwide because God is going to send strong delusion so that those that had pleasure in unrighteousness are going to believe a lie. 

2 Thess. 2:9-12,  "Even him, whose coming is after the working of Satan with all power and signs and lying wonders, And with all 

deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved. And for this cause God shall send them strong delusion, that they should believe a lie. That they all might be damned who believed not the truth, but had pleasure in unrighteousness."

So maybe the apostate Christians who have already fallen away because they pleasure in unrighteousness will think the Antichrist is Christ, the Jewish people will think he is the Messiah, the Islamic people will think he is their Mahdi, and so forth so it could be a worldwide falling away which may be caused by the Antichrist receiving a mortal deadly wound in the head, and it appears that he was resurrected from the dead by a great sign or lying wonder so that everyone believes that he is their God.  This may happen at the time that the daily sacrifice in the Jewish temple is taken away which could be 30 days prior to the abomination of desolation being set up and the Antichrist is given power for 42 months or 1,260 days over the people on the Earth.

Rev.13:3, "And I saw one of his heads as it were wounded to death; and his deadly wound was healed: and all the world wondered after the beast."

Rev. 13:12, "And he exerciseth all the power of the first beast before him, and causeth the earth and them which dwell therein to worship the first beast, whose deadly wound was healed."

Rev. 13:14, "And deceiveth them that dwell on the earth by the means of those miracles which he had power to do in the sight of the beast; saying to them that dwell on the earth, that they should make an image to the beast, which had the wound by a sword, and did live.