Some good points. A number of people have spent a huge amount of energy and time ranting about changes to Medium. It feels good to vent, but if you (referring to everyone) do it regularly it just becomes bitterness that very few want to read. Constant negativity gets tiring and depressing.
Medium allows anyone to publish on demand (without an editor’s approval) on an attractive website with a huge potential (not guaranteed) audience. And it will even pay (a small amount) for writing that no one else would pay for.
Medium doesn’t owe anyone a writing career or a customizable independent writer platform. They are a business. They make changes as any business does. We can accept those changes and adapt, or we can leave, or we can waste our time ranting that the good old days are gone.
If you want something else you are free to make your own website. Sites like Squarespace make it easy. But don’t expect Medium’s audience to follow you. You will have to build that yourself from scratch.
It is difficult transitioning from a big fish in a small pond to a small fish in a big pond, but that is the reality of Medium. Enjoy your swim. Or don’t. It’s up to you.