John 3:17 is my most favorite verse, because it doesn’t begin with “EXCEPT”.
The sins of the entire world, not just the elect.
1 Jn 2:2, “but He is the propitiation for our sins; and not for our sins only, but also for the sins of the entire world.” God the Father was satisfied with His judgment of our Lord.
It’s ashame you misunderstand your favorite verse, as well as 1 John 2:2. I’m guessing your mind is closed and you believe you know more than I do, so I am not wasting any more of my time. My guess, because I have been where you are, is that you’ve never studied this from another perspective. See I used to believe much as I suspect you do. I believed that way for about 40 years and was dead certain I was correct. That’s what I had been taught both in church and in my Christian university and I never questioned it. And then one day a more mature believer I barely knew confronted me over it. What started as a gentle rebuke changed my life. Short of salvation, it’s the best thing that ever happened to me. By the way, we both believe in a limited atonement. The difference is I limit it quantitatively (those for whom He died), but you limit it qualitatively (what He actually accomplished).
If you want to know what the Bible actually teaches on this point, here are a couple of links.
http://www.reformationtheology.com/2007/11/understanding_1_john_22.php
https://www.gty.org/resources/pdf/sermons/62-10