Even though the entire cryptocurrency and none crypto assets on the stock market price are down currently but the level at which my various altcoins portfolio crashed backward baffles me, please can anyone explain for me how the altcoins market works.
You're probably looking at the top x coins and thinking that it is representative of the whole market.
In reality, this is definitely not the case. Your coins could be exotic small caps that have very little correlation with the rest of the market.
Especially these days where there are so many unrelated tokens. Just use something like FTX to track all your crypto holdings.