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.
It's not a hypothesis it is fact, it is numbers. If Bitcoin is successful and transactions increase the block size will increase hitting the cap, this means the next transactions will be forced to wait for the next one, which is getting filled quickly and causing a congestion. There is no hypothesis, this isn't that might happen but it will happen
IF Bitcoin keeps increasing in popularity and transactions,
which it has been on a steady trend.