When you can see, most popular coins disappeared and most of them make you feel awkward situation, then definitely bitcoin is smartest choice among them. Bitcoin also decreased so many tome but it only disappointed them who sold off cause even after crushing market on 2017, bitcoin gives 2-3x roi which is big achievement who trust bitcoin and as you said, bitcoin will recovery in long term, so there is nothing to worry but hold tightly.
It's true as you said bitcoin is a very wise choice for all of us, since the beginning of bitcoin's appearance until now bitcoin has never disappeared, despite the decline in prices and many governments prohibiting bitcoin but bitcoin still exists today, even the price of bitcoin continues to increase every year, much different from other coins, at the beginning the price was so high and they also promised us various facilities, but after we invested a few months they disappeared, and the price of the coin fell like raindrops..