This is an extremely fair point. I have to research exactly if some part of these fees is going back to the protocol and/or Uniswap team. I believe they had implemented this to sustain long term growth and make it attractive to own $UNI tokens.
There was a risk to do that back then but the app is now such at the center of all DeFi apps that it might have the size to still attract liquidity providers despite this extra "fee"
Thanks for this great comment. I appreciate your thoughts.