It's a voluntary network. That's what is important. Anyone is free to join or leave at any moment. Anyone is free to swap for another crypto or fork if they don't agree and the devs cant do a damn thing to stop them. That's exactly how Monero was created to begin with. Users decided they didn't like how previous devs were doing things and left them for Monero.
Bitcoin was also at one time vulnerable to a very small state actor. Speaking of security budgets, Bitcoins is rapidly shrinking.
The only way it is sustainable is if Bitcoin price continues climbing indefinitely (what a thing to base security on), and/or transaction fees make up for it. If adoption continues and transaction fees climb with it this will price out the vast majority of the world from using Bitcoin in any sovereign manner.
ASICs also have many flaws...
-ASICs can't match the ubiquity and accessibility of CPU mining which is more conducive to decentralization. No large capital investment required.
-Ostensibly harder to attack, but if successful, much harder to deploy new ASICs to fight back since they're in such short supply
-Large concentrated mining farms are easy to co-opt and regulate for governments.
-Heat, noise, and energy draw make ASIC mining very obvious
-Two major manufacturers chokepoint
-Everyone knows what you're doing with that ASIC miner you bought
-Centralized mining pools. StratumV2 helps but isn't sufficient. Large pool operators control payout.
-Over half the total hashpower now requires KYC.
-Targeted mining censorship possible.
Bitcoiners act as if they aren't centralized in any regard, when they are in several ways, including defacto relying on core developers. Bitcoin Core is 99%+ of your node software. Even BCH is more decentralized in that regard.
Monero is not an "alternative to Bitcoin. It's not even a fork of Bitcoin. It is doing something completely different. Maybe you should start thinking of each network having unique advantages of it's own rather than this very narrow maxi mentality
"Police raid a concealed #Bitcoin mining operation, initially mistaking it for an illegal marijuana farm due to the heat signature"
https://twitter.com/BitcoinNewsCom/status/1721359382745874489
https://luke.dashjr.org/programs/bitcoin/files/charts/software.html