All of them are worthless, they profit only on same name but didn´t see any competent fork of any cryptocurrency.
Änd if you think about that, almost every coin is a "fork" of a real Bitcoin (only DAG and MimbleWimble protocols are difftrent.)
does that mean price manipulation can be done following BTC prices on the market? not like that. if you are more careful in the market, you can see that there are several assets in the market that have not experienced development even though BTC has improved as it is today. each platform must be able to make their market development. they must be able to make their markets stronger.