You may prove right in the long-term. but a short-term crash may be the "end of the road" for those having leveraged positions or trading with borrowed money or newbies who have never seen a serious bear attack.
Traps are set to kill you, to liquidate your stupid positions. So why use leverage if you are not smart enough or don't have enough experience with crypto trading?
I don't offend you but the questions are basics and you will have to pay precious cost if you don't understand it.