St. Robert Bellarmine wrote an entire book on the subject of the identity of the Antichrist. One of the chapters is dedicated to proving he will be an individual person, not a system.  

[url=https://www.amazon.com/gp/product/0692648917/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=0692648917&linkCode=as2&tag=httpwwwchanco-20 />
John Cardinal Newman also wrote quite a bit on Antichrist from the perspective of debunking protestant beliefs.  You might start with those two sources in additional to Sacred Scripture and the early Church Fathers, of course.

Well, at the back of Fr. Denis Fahey's "The Kingship of Christ and the Conversion of the Jєωιѕн Nation," he included an index regarding the coming of the antichrist, which is divided into the following sections:

A. Things that are certain
B. Things that are probable
C. Things that are undecided
D. Things that have not a solid foundation

This list of categories is taken from Fr. Lemann's "L'Antechrist" (p. 20)

A. Things concerning the antichrist that are certain:

-Antichrist will be a trial for the good, and a chastisement for the impious
-Antichrist will be a man, a human person
-Antichrist will not be Satan in human form
-Antichrist will have great powers of seduction, from his natural qualities
-The beginnings of his career will be lowly and obscure
-Antichrist will increase in power and make conquests
-The rule of antichrist will be worldwide
-Antichrist will wage terrible war against God and His Church
-Antichrist will claim to be God, and demand exclusive adoration
-Antichrist will attempt to prove his divinity via prodigies
-The persecution of the antichrist will be temporary and he will be destroyed

In other words, none of the things you attribute to infallibility or the Church Fathers are included in Fr. Fahey's assessment.

Here are the rest of the categories:

B. Things that are probable:

-The Jєωs will proclaim the antichrist Messiah, and will help to set up his kingdom (which is what my correspondent is perceiving)
-The persecution of antichrist will last three years and a half

C. Things that are undecided:

-The nationality of antichrist (i.e., whether he will be Jєωιѕн or not)
-The name of antichrist
-The seat of antichrist's empire
-The Temple in which antichrist will present himself for adoration
-The date of the coming of antichrist

Fr. Fahey then concluded his list, without indicating any theses which "have not a solid foundation," and merely provides the Decree of the Fifth Lateran Council which excommunicates ny who attempt to assign a date to the advent of the antichrist.

^from another thread

Has anyone wondered whether Trump was the antichrist and the vaccine was the mark of the beast?

Trump is NOT the AC because he does not fit the descriptions in any way.  Namely, he is not an apostate Jєω nor is he a European who is the Little Horn.  
The vaccine technology might be what is used to administer the mark (invisible, resides in right hand or forehead).  However, the true MOTB must be an act of worship or allegiance to the AC.  Not an act to avoid illness or avoid imprisonment or fines.
Are you a non-Catholic?  No judgment, just want to know what worldview you are coming from.

Has anyone wondered whether Trump was the antichrist and the vaccine was the mark of the beast?

I can't wait to vote for Trump, but I'd never vote for the antichrist. Does that help?

Fr John O'connor on the reign of the Antichrist

https://youtu.be/EGBnEvpCbso?t=18