There are already aspects of the ecosystem that are not good for Bitcoin. In my view, the monopoly, or the technology moat, that Bitmain has achieved is bad for Bitcoin. They have 90% market share of the ASICs that run Bitcoin mining ops. And they operate Antpool, the single largest mining pool. They have shown deep conflicts of interest, literally crippling the ASICs they sell to everyone else except their own operations, which they fought hard not to patch, but were ultimately forced to patch after Braiins revealad their ASICBoost deception. They also directly operate or indirectly have major influence over BTC.com another huge mining pool and ViaBTC is also largely associated with Bitmain.

Every aspect of Bitcoin was designed to be decentralized for it's long term survival and success. History has shown over and over again, that centralization inevitably leads to corruption and debasement.

Block is working on 2 or 3 nm ASICs and announced their intention to open source their designs and plans. This is a positive step. There are other semiconductor manufacturers trying to dethrone Bitmain overwhelming position and try to grab share: NVIDIA, Samsung, Intel, Bitfury, MicroBT, and others. The ones that open source their designs for the benefit of the ecosystem have the right mindset.