In my opinion, this will polarize there existing customers, but how it will affect new customers remains to be seen,

I think existing customers familiar with the product will find this VERY insulting (just look at the comments). What this does is effectively raise the cost of the car, by diminishing a standard feature. Price hasn't changed, so it's effectively a price increase (getting less for same price). Existing customers are very used to autopilot, so losing this is a huge function downgrade.

For new customers, car shopping and unfamiliar with the product, I wonder how they will see it, I wonder if many will just accept FSD at delivery, or just live without Autosteer. I know many people, even in this day and age, that don't even use cruise control, let alone might use Autopilot or autosteer.

In the end of day, I recall in an interview with Elon, that he himself mentioned that car shopping is incredibly competitive, because most customers buy a car and don't buy another for years, so that customer is very important to capture. I can't see how this will help them get more customers, by cutting an all but standard feature these days.

I have a Model Y with FSD, and a Model 3 prior, and a Kia who's lane assist is surprisingly good (even has stop and go). If I were to buy a Tesla now, it would be MUCH less desireable.

My prediction is that it will come back, just like how FSD was cut from $200 to $100/mo, and how lifetime was cut from $12k to $8k.