Not at all. The validators get a small portion of the transaction fee for themselves and certainly they could ask for something different. But the ETH burn is built into the protocol. In theory that could be changed, if you got agreement not just from validators but from the rest of the ecosystem too. But nobody wants to change it. 1559 became very popular within days of hitting production, since it improved user experience so much. And the bigger the ecosystem gets, the harder it is to make fundamental changes.
But sure, in theory all the protocol rules could be changed. In theory Bitcoin could change their 21M supply limit. In theory, a company could sell its fixed assets and pivot to an entirely different business, or the US could change its constitution and take away property rights. But in practice, we usually estimate values based on the way things are working now, and put little weight on unlikely fundamental changes that might happen someday.
The difference is that the US would not do that in response to a speculative dump. With ETH, the system stops working and everything breaks without a HF. So it’s valuable because it’s valuable.
If the company pivoted to a different business, it would likely violate securities laws. Corporate governance is in place to stop that from happening.
US taking away all property rights is significantly less likely than an ETH hard fork. Hard forks have happened.
Ecosystem is getting smaller because everyone knows there are currently no useful DeFi projects. ETH is failing to pump again so this is the peak of network security.
Bitcoin is also a memecoin for the same reason, but at least it’s a credibly neutral memecoin unlike ETH.
Ethereum would not stop working just due to a price crash. It would get cheaper for an attacker to purchase majority stake, but good luck purchasing that much without making the price go back up.
But sure, in theory all the protocol rules could be changed. In theory Bitcoin could change their 21M supply limit. In theory, a company could sell its fixed assets and pivot to an entirely different business, or the US could change its constitution and take away property rights. But in practice, we usually estimate values based on the way things are working now, and put little weight on unlikely fundamental changes that might happen someday.