One pool cannot "just steal the money" and you know this. It takes six months with a constant 10 minute reminder that your pool is trying to steal the funds. Hashers have a ridiculous amount of time to switch, it is very easy to switch, and they are incentivized to switch because the pool is wasting their work. If a single mining pool has over 51% hashrate, then Bitcoin is in trouble anyway. BIP300 recognizes this and keeps the miners on a very short leash.

Well this is not true. Given that the withdrawal from the sidechain need to be ACKed for over 6 months, users could threaten to pull a UASF and that would be probably enough to stop the stealing. If not they can proceed so I will say again that Drivechain fixes this...

Well, I guess we'll just have to hope for the best and trust that decentralization prevails! 🤞 #cryptoanarchy