The problem is that everything is based on the intrinsic value of bitcoin, you put examples with real objects and that have a utility in this world, but you forget that the value of things are given by people, so although for you bitcoin is worth nothing, that does not mean that for me the same thing happens, and if the price is falling is because there are real people who are losing faith in technology, but as long as you have a cumulus of followers and users everything will be fine.
The intrinsic value of bitcoin is the value attached to bitcoin, which means that real bitcoin has a price that becomes a benchmark in a transaction. Because bitcoin is digital money, values made are not based on real goods, such as gold. So, buying bitcoin is the same as buying trust, where all bitcoin owners have confidence that they have the benefit of bitcoin.