That's when the block rewards officially run out. No more new Bitcoin. From that point on, the entire security of the network—the miners who protect it from attack—will rely only on transaction fees.
The theory is that a mature, global Bitcoin network will have enough fee volume to pay for its own security. But is that a guarantee? What happens if Layer 2 solutions thrive and most transactions happen off-chain, starving the main chain of fees?
Are we placing our faith in a future fee market that might not be strong enough to secure a multi-trillion dollar asset? Or is this a non-issue that the protocol will naturally solve?
Is Bitcoin's security budget a fatal flaw we're just kicking down the road?
Simply Bitcoin is decentralized and the first mover on crypto space. There’s no way a shitcoin blockchain will overtake Bitcoin in the near future because they have their team holding the huge chunk of their supply that has high voting power on their blockchain development.
All altcoin blockchain is a pseudo decentralized blockchain since the team behind still the voting power majoirty.