Back to refuting the Petros argument.
Even if you allow the arguement that Jesus meant Petros, or little rock, you are ignoring the fact that petros = little rock had gone out of Greek use 100’s of years earlier. Lithos was the term “of the times” for small pebbles. I believe Lithos is used something like 17 times in the NT, where petros would have been used were it still referring to pebbles and such.
I once heard of a Christian Apologist trying to claim that the usage of petros=small pebble had briefly gone back into existence for a brief period in the 0-100’s, but just as quickly it went out of style again. Now that’s grasping.
Incidentally, this helps to explain the brilliance of Mother Church in using the Latin language for all of Her Teachings. You see, since Latin is a dead language, the meanings of words don’t change with the changing times. E Pluribus Unum will always mean the exact same thing in Latin.
As a further example, if I read, “That car is hot!” it could mean different things.
In the 1970’s it would have meant the AC doesn’t work.
In the 80’s it would have meant that it was stolen.
In the 90’s it would have meant that it is a nice looking car.