Why are altcoin exchanged for btc and not for dollar?
Bitcoin is the main cryptocurrency and before you can buy those altcoins you have to exchange dollar --> bitcoin first to proceed buying an altcoin.
having tons of altcoin is just like having bitcoin. If bitcoin grows, they grow. If bitcoin falls, they fall.
Having tons of alt is like having bitcoin? How can it be? bitcoin is bitcoin while altcoins are altcoins no matter how many type of alts you are holding.
Isn't this pointless? Why not buying and selling alts for dollar?
If you think this concern shall be prioritized then ask your favorite exchange to address this.