Shifter has a great video bike crime - https://www.youtube.com/watch?v=el1Xznv5ge4
But a few things come to mind: (especially for e-bikes)
1. Bike registration. Most e-bikes / high-end bikes cost as much as a beat up car. having them all come with basic registration makes it very hard to sell a stolen bike.
2. Bike tracking. Ebikes should come with airtag-like functionality standard. It is a $10 maximum overhead.
3. Bike alarms. If you have a tracker, it should have an alarm. The bike already has a bell. just put a put servo in there.
4. Last but most importantly - prosecution. Treat ebike theft like car theft. That's $1-10k value of stolen property. No reason to allow it willy-nilly.