Core developers can not just change the nodes because they want, don't you see it takes years to implement segwit? which seems useless due to most platforms are not using it. You should know better why we have to pay fee, because bitcoin require miners to solve the blocks and it's not easy as you need ASICs which takes lots of money. No one want to mine bitcoin if they are not paid, Satoshi Nakamoto has made the nodes works this way to ensure bitcoin's environment could run and last as long as possible.
I SHOULD know more than anyone
Yeah the fees are there because after 21 million there would be nothing to incentivize miners. Hence why I'm saying kill the fees and trade it for VERY MINOR inflation to make it more spendable.
In order to do this, there would have to be a centralized team or organization that would monitor the inflation fee, which goes against the very fundaments of why Bitcoin became so popular in the first place. In theory, it would be better to have a small maintained fee structure, but that would require consensus, which we cannot even get from the devs to increase the size of the mempool. Yeah, this is more than likely not going to happen bud.