This is a fact that altcoins bleed whenever Bitcoin bleeds. However, in rare instances some alts break loose of that grip. Last week, while Bitcoin dipped I watched keenly how Tron (TRX) continued to be on the rise. Perhaps it was because of the Tronpad launchpad that was ongoing at the time and TRX was the official staking coin for Tronpad. Based on that observation, one may be right to say then that Bitcoin crash doesn't affect tokens which are official tokens for usecase projects. Even as I type this, TRX is now above 9 cents as against 5 cents it was a few days ago.
Tronpad had a good hype at that time, several IDO projects were launched on Tronpad and also BSCPAD as the main launch. Tronpad is not the official platform of Tron ( TRX ).
Bitcoin crash time Some altcoins did survive, not only TRX, but SOLANA was also able to hit a new ATH when all the altcoins crashed. there are some moments that make them survive. but when Bitcoin crashes, the altcoins that initially survived are no longer able to and eventually crash too.