But a couple of these concerns are may be just because of the short experience renting?
Door handles: for the first week or so they seemed awkward, but I've been opening with a single hand ever since. The design is very similar to various exotic sports cars - and not well suited to a midpriced daily driver. Tradeoffs for aero, I think.
Unlocking and locking: bad experience on a rental with the card. As an owner, it locks and unlocks based on the phone-key automatically in daily use. I tried the key card a couple of times in the first month to understand how it worked - it's great as a backup key that fits in a wallet.
Touchscreen: I've used the touch UI in various brands of recent cars, and find the Tesla experience by far the best. Though I agree another $50 worth of physical buttons for the most commonly used features would be nice.
Steering wheel controls: after a few weeks you remember what they do and the physical minimalism is totally fine. Design optimized for owners, at the expense of renters.
Lane controls: there are about a dozen switches that control this behavior. It can be incredibly annoying, or no problem at all. Sounds like the defaults nowadays (or what the rental place sets) are awful, since as configured it ensured you won't buy one.
Price: they're selling all they can make at the price the market will bear. Would be nice if it was lower. Many industry watchers predict lower prices are all brands in 2023.
Fortunately it's a big industry, there are now some great electric cars competing with very different dashboards. I like variety, I'll pick a different one when I am ready to trade in.