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Look how the number of created altcoins has increased in recent years. It is not a fact that we will see the altcoin season in the usual form, because liquidity in the crypto market is limited, which means that only tokens/coins of really necessary projects will grow in price. So you need to be very careful with investments in altcoins, otherwise you can not only lose profits, but also lose all your investments. The idea of trading in pairs to Bitcoin is not new and deserves the attention of those who believe in the long-term prospects of Bitcoin.
According to an interesting report from CoinGecko, by 2025 there will be more than 7 million altcoins on the market. In 2024 alone, there were 1.4 million failed altcoin projects, and by March 31, 2025, that number had reached 1.8 million.
It can be seen that the number of new altcoins created every day is huge and fast, but they also fail as quickly as they are born. That shows that investing money in altcoins, especially tokens on DEX, is riskier than gambling and I don't think it's investing but pure gambling

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Even projects listed on Binance are not trustworthy anymore because they can add or remove anytime they want like what they are doing with Move or Portal...projects they just listed last year.

Source: coingecko
Those who invested in altcoins will be waiting for profits if the prices go up during peak of Bitcoin bull season. Altcoins sometimes are the ones crashing the market, from your chart it says 7 million altcoins and all of them have investors generating profits to founders of the altcoins, out of the 7 millions altcoins give it in a few months more than half of those altcoins will not exist, a rough estimate can tell how much funds will be lost in altcoins if only it were redirected towards Bitcoin then price movement will become better.
I have shared the stage with friends who do altcoins, they buy their altcoins now since Bitcoin hasn't reached ATH hoping that their altcoins get correlated with Bitcoin during bull run, sometimes it fails and it's always hard for those altcoins to remain in the market, most times they crash later on.