PoS isn't horrible but the cost to produce coins vs PoW coins is a lot less so the price for PoS coins will always be much much lower.
There is no connection between the cost to produce a crypto coin and the price, hence your conclusion is a fantasy.
Price is a function of supply and demand only.
If supply of a PoS is fixed or inflates at a predictable rate comparable to a PoW coin inflation rate, there is no reason for the market cap (and price too if total caps are the same) of a PoS coin to be below the market cap (price) of a PoW coin (Bitcoin has a first mover advantage vs all others, PoW and PoS coins, it shouldn't really be compared here for the purity of this experiment as it clearly wins now just based on the adoption numbers).
The cost to produce a coin is a function of it's price, as if the price declines, the difficulty will decline causing the cost of producing (mining) the coin to decline.
With PoS coins on the other hand, the cost of mining is simply the cost of holding the coins
Yes, but we discuss what the price depends upon, not what the cost to produce depends upon.
Only miners would be interested in the latter, whereas investors and users are interested to learn what drives the price.
Cost to produce depends on the price, that's correct.
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