There is no 'perfect' store of value. If you have a lot of value to store, crypto should absolutely be part of your portfolio. Stocks fluctuate by large percentages and people put their entire retirement savings in those. Property fluctuates as well. The dollar itself may be fluctuating more than usual soon given amount of unchecked spending that happened this year.

No store of value is safe, do what financial advisors says and diversify evenly across asset classes. It's not about making money, it's about maintaining what you have.