Too bad that the most threat in Bitcoin market is centralized exchange since most people hold their coins on there, even though we've pointed out there are so many hack and bankrupt cases, they didn't listen to us because they believe Binance is safe, has SAFU, they don't have to pay transaction fees and they can make money by stake their coins.
Centralised exchange is a threat to people who use them, but I don't think it's a threat to Bitcoin. If every centralised exchange crashed today, bitcoin would still be here, the price might take a massive hit, but it would survive. Secondly as ironic as it sounds, the exchanges don't want anything bad to happen to Bitcoin, they might be nearly worthless without Bitcoin.
I believe one major threat to Bitcoin is the government of various countries. We may not admit it but they joke so much power. If they decide to cramp down on Bitcoin a whole lot more or ban it completely, it's going to be a problem to have Bitcoin if having Bitcoin is illegal.
Another threat to Bitcoin is NFTs in Bitcoin Blockchain. It makes the network congested and increases the network fees and also makes confirmation take more time you're ready to pay a ridiculous amount and sometimes you might even pay very high and still wait hours for your transaction to be confirmed.
Generally, high network fees are a problem toforitcoin, but that wouldn't happen often if not for ordinals in the Blockchain.
When people can't get transaction confirmation in 10 minutes with very low fees, it discourages adoption.
To me, these are the biggest threats to Bitcoin.