Well lets call it a narrative change if propaganda is a strong word.
It's not about the word but by the times you're using it, the moment you reach 1 mention per line it does pose serious questions.
When I look back at the history, from the inception of bitcoin up until early 2017 the term "asset" is rarely used to describe bitcoin. However, the biggest narrative change starts in early 2017 as bitcoin starts being referred to as an asset and a store of value while the "currency" definition is starting to disappear. Surprisingly this is the same year when payment processors (representing the usage of bitcoin as a currency) are reporting ATH in number of payments they are processing!
Not surprising at all, if it weren't for the price increase you wouldn't have seen any increase, going by the "surprising" thing you might actually think that calling bitcoin an asset is what fueled the growth. You see, this happens when you speculate that much and you see things where there is nothing.
Finally we get to 2019 and the turning point in history of bitcoin. The COVID pandemic begins and there is a[n almost] global economy crash and bitcoin drops significantly at the same time. The narrative from this point gains a very strong footing and people start believing that there really is a "link". The result is that nowadays we see panic sells 90% of the times when US stock market dumps.
And it was a link, and it's a pretty obvious one.
If you reach 99% unemployment and people run out of money then every bitcoin will be worth shit as there is simply no money out there to invest, guess what people who have coins and have lost their jobs and business will do? Sell! This was no economic crisis scare, it was at that time seen as a possible catastrophe, it's normal people would be scared.
Otherwise there simply isn't any logical reason why the price of this global decentralized currency should be affected by something as irrelevant as how US stock market is behaving!
The last time the stock market coughed a bit harder it sent us back a decade, calling it irrelevant even if you're speaking of bitcoins or scarecrow manufacturers is just silly. Like it or not that's where the power is and it will be for a long time from now on.
Finally, I can agree with you on something,
If I wanted to give as unbiased an observation as I can about the "cause" of this drop (and similar drops) I'd say that people have always been trying predict bitcoin price and have been failing. Specially since Technical Analysis doesn't work very well for bitcoin. However, they don't stop predicting; instead they start finding new methods of prediction.
I also believe that anyone who thinks for real he can predict market movements accurately over short intervals is just full of shit, you either are a complete moron or a scammer trying to earn money from people who trust you.
That being said, although I do appreciate your points I still think you've gone lately a bit too far into those conspiracy theories where everyone is against bitcoins and everything bad is caused by stupid people who don't know better. Remember that the ones selling are the ones that bought, without them the price wouldn't be here in the first place, without traders there wouldn't be that much activity either, and most important, bitcoin was about freedom, they own those coins they can do whatever they do with them, calling them any names, accusing them of x and z, blaming everything on random poeple shows one thing, that a community is becoming toxic to the outsiders. Never! has this ended well.
Oh and just to mess a bit with you
While bitcoin went up 100% above its pre-dump price, those other assets were still trying to recover a tiny portion of what they had lost. This little fact attracted a lot of money from those assets and is one of the reasons why bitcoin price is currently 1306% above its bottom price at the peak of propaganda while many of those other assets are not even at their pre-dump prices, most of stocks have gained very little after the recovery and so on.
TSLA 20 March $85 now $747, 778% sounds pretty nice to me