You are taking into account, that there will be a time, when you can't use Bitcoin as you are used to do it. I think, that would really hurt Bitcoin.
If Bitcoin is successful, this problem will occur.
Do you have hard evidence for your hypthesis other than vague projections that may or may not come true?
You are repeating the same over and over again while ignoring the counterarguments presented.
I didn't see any argument, explaining why that growth would stop. Can you show it to me?