No, that’s what everyone else insists I’m saying.
Hmmm… I say I’m fallible but the Spirit is infallible. Why does everyone have a problem with that?

You’re free to think that and seek out what interpretation you feel is correct. A large portion of Christendom doesn’t interpret that passage the same as you even when they rely on Tradition as well as Scripture.
Everyone except the Judaizers that continued to teach that converts must follow the Old Covenant. There is nothing that contradicts scripture here, nor the fact that Jesus fulfilled the Old. Also note that it was put down in writing; why was it put down in writing?
Again you seem to imply that sola scriptura doesn’t support that; it does. The flock here was a young one. They wanted to clarify the position of the New Covenant and did so and we know about it because it is recorded in scripture.
Once more, there are positions within the church, and also certain teacher, preachers, evangelizers, etc… gifted by the Spirit. The people were turning to those that brought them the gospel to clarify for them. Nothing against sola scriptura there either.

Jesus Christ
Himself taught the Apostles. He’s the one that did it. Where do you think those like Paul learned from? Do you think sola scriptura denies the Apostles or their teachings? It doesn’t. You believe that there is Apostolic Succession in a way that isn’t there, which leads to:
No, because the test is if the teaching contradicts known scripture. If it contradicts, then it is not Apostolic nor correct. The RCC has not erred in everything it has produced, but obviously even those that also see tradition and authority the same way the RCC does ALSO interpret scripture and tradition differently.
And we are back to beating a dead horse.