Even though Bitcoin has proven to be the most dominant cryptocurrency in recent years, Bitcoin has not been able to meet the needs of all its users. And, in an era where privacy is a more important problem in the community, it seems that some individuals prefer cryptocurrency such as Monero, Zcash, and Dash, which has proven to be more effective in protecting user privacy.
Lol. Wrong. Bitcoin is the most popular cryptocurrency which helps safeguard your privacy to a large extent(Not as much as Monero etc), but it does the job majority of the time according to many investors including me.
Privacy isn't everything. There are other important factors like popularity etc and Bitcoin is the king since it a complete package basically. Also, regular developments like LN, segwit etc make it an even better cryptocurrency which is why it will always stay at the top.