If the numbers look too good to be true, it's because they are.

1- Kindle generally has a smaller attack surface for reading books compared to an Android tablet. The Kindle's operating system is more specialized and focused on reading, reducing potential vulnerabilities compared to the more multifunctional and complex Android operating system.

2- If you have dealt with representational trauma in cyber warfare, the Kindle would be a refuge psychologically speaking as it wouldn't cause much disorientation and have a lesser impact on your brain chemistry, of course, there are valid reasons you have fallen victim to consumerism here too, so learn to secure all your devices rather than scapegoating!