We see deception on a grand scale in these days and I believe the majority of evangelical Christendom at least in the West has given way to false teaching, false conversions, false signs, false whatsoever in one form or another. There will be only a remnant left and this remnant will be thoroughly tested and refined in the furnace of affliction. Do not be ignorant, what happened to the Jews will happen to the Christians in like manner.
The apostasy of the last day is foretold in many places in the bible. It will look compelling, attractive, and genuine on the surface. It will become mainstream.
2. Tim 4:3 3For the time will come when they will not endure sound doctrine; but after their own lusts shall they heap to themselves teachers, having itching ears; 4And they shall turn away their ears from the truth, and shall be turned unto fables.
2 Thessalonians 2
8And then shall that Wicked be revealed, whom the Lord shall consume with the spirit of his mouth, and shall destroy with the brightness of his coming: 9Even him, whose coming is after the working of Satan with all power and signs and lying wonders, 10And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved. 11And for this cause God shall send them strong delusion, that they should believe a lie: 12That they all might be damned who believed not the truth, but had pleasure in unrighteousness.
All of those who do not love the truth will be ultimately caught up by the counterfeit. The counterfeit works so to say as God's garbage truck. Jesus said:
Luke 17
37And they answered and said unto him, Where, Lord? And he said unto them, Wheresoever the body is, thither will the eagles be gathered together.
These eagles (or vultures in other transslations) are evil spirits that feed on rotten flesh. They feel on carnally minded Christians.
The counterfeit gains control when people do not rightly discern between Spirit and soul. Because they do not hold the whole truth in high regard but make allowances for their sins they mix up soul and Spirit and the result will be an increasingly distorted and disfigured Christ. At last the antichrist will be revealed and will be worshipped instead of Christ.
Do not marvel when many here on SI are of different opinions on these topics. Do not get into arguments but rather pray. Even the correct arguments will make them more furious. People need to have a revelation by the Spirit of God. Years ago I would have bashed those discerning voices as religious bigots. God dealt with me thoroughly in a time of affliction and after my repentance gave me revelation of what is going on all around Christendom.
I personally have left not a few meetings in anguish where the counterfeit was presented. They all thought that the Holy Spirit was present in the meeting.
2 Timothy 3:12-14
12Yea, and all that will live godly in Christ Jesus shall suffer persecution.
13But evil men and seducers shall wax worse and worse, deceiving, and being deceived.
Good old T.Austin Sparks talked about that in 1969, see
A Final Shaking
https://www.sermonindex.net/modules/mydownloads/visit.php?lid=31