Which should point out to an observing mind , how weak Bitcoin and PoW consensus truly are.
A Massive Price drop can kill bitcoin due to it's insane input costs.
I don't agree, that's not how it works.
Transactions fees are defined by demand and supply, basic economics.
It does not have a direct correlation with price.
In December when btc price was high the fees were high (the opposite of what you aaid).
Fees were high because there was a peak in demand , nothing to do with its price.
And high fees didn't kill btc, wasn't even a threat to it .
Nobody knows what problems pos will bring, as it has never been tested with a decent project with many transactions per day
Clarifying:
I am not talking about transactions fees , I am talking about the Bitcoin Market Price.
The production cost to make a Bitcoin is ~$3000 last I checked.
(This includes the warehouse/asics/Electricity input costs needed to Break Even.)
If the market price falls below that input cost of ~$3000, say only $1500.
That means with every new bitcoin block created the miners loses $1500 per coin which is $18750 (12.5 coins per block)
, and that is if the miner is selling every bitcoin he makes.
Which means the big players will hoard bitcoin and quit selling it as they have bigger pockets,
but even they can not hold out for long losing $2.7 Million Dollars per day or $81 Million Dollars per Month.
When too many miners drop out, the network Hash drops,
(having a difficulty only reset every 2 weeks is really a security vulnerability that has never been fixed, Most Alts reset Difficulty after every block.)When the Hash drops too low , blocks are only found every few days, so the normal 2 weeks could take months to complete.
During this time almost no one will be able to get a transaction into the blockchain as onchain transaction capacity will be severely diminished.
Where you used to have potential of 144 x 1.7mb blocks full of transaction per day , you may only have 10 blocks or less.
Only chances for recovery would be
1. The other miners start mining at a loss losing millions per day, doubtful as low prices is why they stopped.
2. Wait months for it to work it out , doubtful everyone will switch to another crypto.
3. The Bitcoin Dev team will have to reset the difficulty with a fork , which will cause a crises in confidence and hurt BTC price even more.
Do you now see the problem with having PoW insane input costs?
During even just a short market lull of 2 or 3 months,
bitcoin very survival comes into question, with no guarantee it will last long enough for the price to recover.
I hear alot of fear in your voice about Proof of Stake, it has been around since 2013 and so far none of the fairly tales about it's easy destruction have been accomplished by anyone. Over 5 years and no one has performed a attack that destroys the Proof of Stake Consensus , it all been falsehoods and lies about how easy PoS is to destroy. PoW is only 4 years older and it's centralization & energy waste failure are paramount and undeniable to all but the bitcoin fanatics that never recognize any of it's failures .
There are many PoS Only coins with multi-million markets caps and no one has been able to destroy one of them.
Blackcoin / Ardor / and Multiple others