The fundamental reason why altcoins are not rising is that Ethereum (ETH) is in a relatively weak position against Bitcoin (BTC). Rather than Bitcoin's standalone increase, ETH's relative strength against BTC has the most significant impact on the overall performance of the altcoin market.
For altcoins to enter a full-fledged rally phase, Ethereum's price needs to rise while Bitcoin either declines or remains sideways. This correlation is an absolute prerequisite for the altcoin market to become active. Currently, BTC price is trading at $70.77K, and ETH price is at $2.08K.
Watching the ETH/BT