Bitcoin prices dropped to make the altcoin price to be very low and even 500% lower than the price of ico, which makes many investors experience a lot of losses. not a few investors who become poor because of it. is it true that bitcoin affects the price of all altcoins

The price of every coins just based on their demand so bitcoin have nothing to do with the altcoins prices but when people investing on bitcoin then more people will come to increase on altcois as well so simple logic behind it and yes bitcoin indirectly affect altcoins prices.