Why are alts so sensitive to Bitcoin price changes over the last 2 years?

I remember in 2022 when Bitcoin was 23k, most of the alts were doing pretty good and kept their price resilience quite well. Obviously they’ve been bleeding out slowly ever since, despite a decent price increase of the Bitpapa (probably due to cash flowing into memes). But how come now, a slight overreaction in bitcoin price causes an entire landslide in the alts market – over and over again.