Undoubtely you're right. Bitcoin is a model for cryptocurrencies and others only try to make it look like it, because the whole world realizes that Bitcoin is the original and the leader among cryptocurrencies. Its thriving development and refined structure in which almost every detail has been taken care of makes it unsurpassed by other cryptocurrencies, and although there is now a terrible decline in the popularity of cryptocurrencies and reduced demand, Bitcoin still maintains a good  level.