In the below linked presentation, Bitcoin is exposed as a fake investment product, which as such, is a total waste of energy. This also applies to all cryptocurrencies.
Why is bitcoin a fake investment product? Or, to put it another way, how do we even differentiate between real and fake ones. Well, it's easy. In a real investment product, your investment of property or work is invested into something actual, which in the future, can provide you similar benefit. In a fake investment product, your investment is not actually invested into something, but is rather, just transferred from you as a new investor to old investor. Historically, there is no exception to the rule that all such products end up collapsing.
The rest here:
https://youtu.be/N5RKm7_scL4In a democracy, criticism is always welcome! It actually one of the key foundation of a democracy. Since bitcoin or the crypto market is democratic in nature, I see no issue when people criticizes it. It will only matter if the majority thinks in a similar way. Looking at the channel, it is clear that they are very new and probably trying to get some views by posting something controversial. So we can safely overlook such videos as it makes no sense to us! It's also a democratic right after all!