Your scenarios aren't similar. You don't seem to understand what a monopoly is. None of your examples are monopolies.
If you don't agree with Eufy storing the images on their server for the security camera you purchased you can buy security cameras from someone else that don't do that and are based on local storage (and there are plenty out there if you look). Eufy are not the only manufacturer of security cameras out there and there is plenty of consumer choice. They can't prevent you from buying someone else's camera. This is not a monopoly.
If as a driver you want to drive a car there are other car manufacturers you can buy cars from. No single car manufacturer can interfere with your ability to drive a car. You can at any time switch car manufacturer if you don't agree with whatever they are doing and no manufacturer has such a dominant position that you would be prevented from driving if you choose to not drive their cars. You don't need to agree to Subaru's terms if you buy a Ford. If a new company wants to make cars with CarPlay and no ads on the in-dash display neither GM or Subaru can stop them. This is not a monopoly.
On the other hand if as a software developer you want to sell software for Apple phones you have no option to do so without agreeing to Apple's terms. You can't switch to another application store that is being provided by a different company because Apple is the only provider for an app store on Apple devices. If Apple decide they don't like you for any reason they can prevent you from selling your software to Apple users. Also while the owner of Apple phones had a choice to buy it or another manufacturer's phone the Apple user's decision to use an Apple device is completely outside your control. As far as an app store for selling software to users of Apple devices Apple has a monopoly over that market.