The number of unconfirmed transactions on the mempool directly proportional to the market condition and bitcoin price.
What do you mean directly proportional? If bitcoin crashes then the unconfirmed transactions will be less too? I seriously doubt that...
Just to add more proof that this isn't the case.
bitcoin price went past $16K already, mempool is about 5MB [5K txs] currently. The highest withing 24 hours was around 20MB [27K txs] which is four to five times lower compared to the mempool from two weeks ago [138K txs].