You expect Bitcoin to become globally used and the block space not to fill up? If bitcoin even approaches use by 10% of people, even if they're all using lightning, just opening and closing channels will cause the mempool to grow drastically. It's basic queueing theory and simple market economics. There are 2 options: either fees one day never go back down or bitcoin doesn't get widely adopted.
If you want to articulate an opinion on something someone wrote you should probably read all of it.