Etrade doesn't adjust the cost basis for wash sales on 1099. The rules for wash sales on 1099s is completely different than the rules for wash sales on your taxes. They simply assume that its all disallowed if they qualify it as a wash sale.
Etrade could automatically adjust the cost basis for you, but they dont.
Turbotax could automatically adjust the cost basis if they have multiple years of 1099s in their system since all of your trades are in their system but they choose not to
