userofgos You can't have a secure phone without it costing something.
A bit off topic, but generally you can do that, if you subsidize a cheaper phone with gains from more expensive, high margin phone sales. Apple is a great example of that: they only use flagship SoCs across the board, with all security features present in every price range. But they can only really do that, by selling somewhat overpriced flagships.
For Android devices though, since many tiers of processors are available, manufacturers often choose to skimp here and save a few bucks that they don't even necessarily pass down to consumers. Google maybe is the exception here, by providing the same Tensor chips across the board. But the rest of the industry, including Motorola, looks pretty grim.