I agree with you. A type of antichrist, Nero may have been, but not the AntiChrist described in our Lord’s Revelation to John.
Funny thing about spiritual revelation is that it is indeed very real.
One might study Prophecy from a rationalistic perspective, but without guidance from the Holy Spirit, it isn’t really perceived and graced upon us as He has provided. It’s all from Him and no other.
So it doesn’t really matter how many others accuse or adversarially attack other viewpoints. God Himself reveals His Will through Prophecy and it is also supernaturally understood by the believer through faith in Christ at the grace of God the Holy Spirit.
Are you sure antichrist even appears in Revelation? I refer to him as the "beast of Revealtion" because the word antichrist never appears in Revelation. Is the Beast the antichrist named in 1&2 John? Probably. But it's not 100% sure. 1 John 2:11 tells us "...it is the last hour, and as you have heard that antichrist is coming, so now many antichrists have come." He then goes on the state that "This is the antichrist, he who denies the Father and the Son." As you alluded to, I believe John is referring to both the spirit of the antichrist here and to the beast when he refers to him in the singular in 1Jn 2:11. From the little horn to the man of perdition, different writers have used different names in referring to Satan's one and only head honcho in the final hours.
One of the things that makes eschatology so intriquing is that you can read 10 different biblical expositors, all of whom you respect and admire, and get 10 different interpretations - each of which makes sense. The Holy Spirit hasn't convicted me of any of the popular views and I personally don't believe enough history has been revealed to do anything but draw the very general outlines. The good thing is Christ wins in every scenario - thus so do we.