There's no more altcoin season because Bitcoin is unbeatable, the only way altcoins can overtake Bitcoin was on 2017/2018, but Ethereum still not able to beat Bitcoin despite Bitcoin price is dump and Ethereum is rising. Nowadays most of altcoins are scam and only created for money purpose, the cycle never end and that's make an investor will not hold altcoins for a long time.
What do you mean there is no more altcoin season? Altcoin season was never a way between Bitcoin leadership vs altcoin, no altcoin is dragging anything with Bitcoin, altcoin season mean that altcoin pumping after Bitcoin is done pumping and the dominance starts decreasing.