https://youtu.be/52DuIE1-tJYThe linked video explains the difference between traditional financial instruments and bitcoin. Traditional are redeemable, while bitcoin is not. Which makes bitcoin equivalent to a losing lottery ticket. Or, similar to a stock of a bankrupt company, a currency of a former county or a casino token of a bankrupt casino.
Hundreds of thousands of people that won the bitcoin lottery disagree with you. I agree that bitcoin is a lottery ticket but I am not sure if it is the losing lottery ticket, yet. It is simply because it is still going up. If one day btc becomes near worthless, then I would say you were right, but not now.
If you turned your 100 bucks into 200, that's a win no matter how you look at it. It doesn't matter if it was bitcoin, stocks or pet rocks that did it, it was a winning ticket.