I agree with this, but you need to know that bitcoin can be destroyed at any time, note that this is not fud. But if the banks or just the economic blocks decide to take down bitcoin and create their own crypto, they can do it.
Something needs to be as digital gold and bitcoin is good for this. No matter how old tech is and how hard to scale the main reason - its already work and everyone know it.
It has been more than dozens of months and the bitcoin fanatism has already begun, but i dont think that it will last longer, you need to know that 90% of bitcoin population is just in here to EARN.
Many months will gone till something become same popular and adopted around the world to replace it... But I vote for Cardano
And that is the biggest disadvantage, when they see that they can not earn more money, they will just leave.