This dump was triggered by the battle of the hashes. If we remove bch and bsv from having any value it would discourage more pointless bitcoin dilution, and prevent further hash wars.
Failure to act will cause more similar situations in the future
We do not need to impose any restrictions on the cryptocurrency market. Everyone has the right to buy and sell any cryptocurrency on the market that he likes. Only in this way can a cryptocurrency develop freely. Why do we fear for bitcoin? If this is a good cryptocurrency, it will withstand the competition, if not, then it will leave the market and give way to the strongest. Such a basic law of any market.