I agree with you 90% of the time. Everyone needs to have an emergency fund if you are not already a wealthy person. That is, if you are one of the richest people in the world, you may not need an emergency fund. But if you are an ordinary person, then adding an emergency fund to your financial management is the most necessary. You may be having a positive moment in life recently, but will such positive moments last forever? In this case, I would definitely answer no. Because this is not a characteristic of a human life. The characteristic of life is that you will have both ups and downs in your life (potential).
I do not see any alternative to having an emergency fund in your financial management as a plan for such potential moments in life unless you are a billionaire or one of the richest people.
I totally disagree with you on this even the rich needs emergency fund, unforeseen contingency is not just for the poor alone so the unexpected can happen to anybody but the rich and the poor that is why emergency fund is also for everyone. Even the rich do insure their life, properties etc Incase of any emergency. So both needs emergency funds to be able to hold their coins until the anticipated time line. In fact emergency funds is not just needed for bitcoin investment alone because I can see why are getting it wrong