Bitcoin is good proof because price and legislation are not basis for the growth of crypto currencies if they have a strong background. If the price of Monero was one dollar, it would have some use case because of the privacy it provides to investors, so once it is removed from central exchanes, it will be traded on DEX.
If we were talking about shitcoins or useless token, I would consider it the end, but Monero will stay with us for a while, and all regulatory variables will affect the price in the short term, and it is not an ideal investment compared to other investments.