In the past my portfolio was having altcoins but later on when i gained knowledge bitcoin became my only favourite choice for investment so i am not interested in any altcoins available in the market at this time as most of them won't give you any returns in future because no project development is there so it's better to leave them floating in their boat.Your coins your choice and your money.
No its not truth . is Etherium will not give us any return in future. Many world top analyst says that Etherium will surpass Bitcoin in long term.
Is cardano will not give us any profit in future? One of the best contract we can see on cardano blockchain and its also real use case.
Is Solana will not give any return.
Bitcoin is ofcourse top 1 but we can Deny the other best altcoin which have great future.