Official canon does Trump everything else. We just disagree on whether or not official canon says that the Kelvin timeline overwrites Prime Timeline. It comes down to interpretation of events of Star Trek (2009).
What do you think the words “alternate reality” mean and why do you think they would use those words if what you’re suggesting is true?
I thought it meant that that reality had been altered due the changed made in history. I thought it meant the reality of the Prime universe had been altered and it turned into the Kelvin universe.