As for my points,
1. In Post #75 I wrote, "The word 'elect' does not occur in the whole book of John, much less 3:16-17."
However, the word "kosmos" does. Hence, this could be an argument against you rather than for you as election is clearly taught in other books of the Bible and so possibly John's use of kosmos in soteriological passages may be applied to the "elect" by contextual soteriological application as explanatory of "mankind" consisting of various races, genders and classes rather than every human being that has ever existed.
For example, although the word "elect" may not be found in John the term "sheep" is found and although they have no lexical relationship the term "sheep" could be used synonymous with "elect" in certain soteriological passages in John.
2. In Post #78, I gave a lexicon definition of kosmos, and the word "elect" does not appear anywhere in it.
No one argues that kosmos and elect are interchangable in Lexical meaning any more than anyone argues that "sheep" and "elect" are interchangable in Lexical meaning. Yet it can be argued in the book of John that "sheep" may have a soteriological application to the "elect" in the book of John.
However, what I think you may be missing is the cultural application of the term "kosmos" by Jews when it comes to the question of soterilogy. I think it can be sucessfully argued that the Jews believed that salvation was not for the "world" in the sense of either non-Jewish world or or inclusive of all races, classes and genders but was restricted to becoming a jew. In john 4 even Jesus said "salvation is of the Jews" and the woman at the well was astonished that a Jewish male would address a woman and even more so a non-Jew - Samaratin. Nicodemus was a strict orthodox Jew who held this view. In the first nine chapters of Acts no Jew would even go preach the gospel to a Gentile. In Acts 10 Peter had to be admonished three times directly by Christ for him to even set foot inside a Gentile home which he immediately told Cornelius that it was "not lawful" for him to do. Even after Acts 10-12 Jews would not go evangelize Gentiles but it was proseylted Jewish believers that did. God had to call and send a special apostle to evangelize gentiles as the Jewish apostles restricted their ministry to the circumcision (Gal. 3:9). In Acts 15 the first general counsel held in the Jerusalem assembly was whether Gentiles could be saved without becoming Jews (circumcised). Hence, the New Testament jewish soteriological culture opposed Gentile salvation apart from becoming Jewish.
So, the question is what does the word "kosmos" mean in the Jewish mind with regard to soteriology. I think it means at least the world of non-Jewish mankind and could be understood to mean "mankind in the sense of all races, classes and genders." Hence, when Paul describes the extent of salvation he speaks in classifications when he says "in Christ there is neither jews or Gentiles, bond or free, male or female."
Finally, the apostle John in Revelation 5:9 also speaks of the elect in terms of classifications when he describes them "hast redeemed us to God by thy blood out of every kindred, and tongue, and people, and nation;"
Paul uses the term "kosmos" in terms of limited classification of mankind in Romans 11:11-12 where it is clear he is referring to "gentiles" as opposed to Jews as "the world":
Rom. 11:11
I say then, Have they stumbled that they should fall? God forbid: but rather through their fall salvation is come unto the Gentiles, for to provoke them to jealousy.
12 Now if the fall of them be the riches of the world, and the diminishing of them the riches of the Gentiles; how much more their fulness?
So, there is sufficient New Testament evidence that kosmos in soterioligical passages can be used for a restricted classification of mankind.
In the first epistle of John, John is writing Jewish Christians. This is evident as he tells his readers that they had already received the commandment as an "old" commandment but now as a "new" commandment. He is talking to a people who soteriologically had believed salvation was restricted to one classification of people (Jews) and which had trouble going beyond that restricted classification (Acts 1-12, 15). Hence, in the redemptive passage (1 Jn. 2:1-2) "whole world" would reinforce that all (whole) classes of mankind (world) are objects of redemption without demanding John means every single human being ever born.
Here it is again; please tell me why the rendering in John 3:16-17 should not be meaning #3, "as all human beings mankind, humanity, all people."
John 3:16 is contextually directed to a Jewish rabbi and presumably Jesus would be speaking in langauge the rabbi would understand. I argue that the Jewish religious community understands "kosmos" with regard to soteriology as a term designating either non-Jewish mankind in general or inclusive of all races, classes and genders rather than every human being ever born anywhere on planet earth. In Romans 11 it could be argued that the term "world" not only refers to a restricted class of human beings - "gentiles" but "elect" gentiles as he is speaking of the promise of salvation relating to the soteriological promise to Arabram or the two olive trees (Jewish and Gentile) elect.