Even if we do create living breathing biologically-functioning and stable dinosaurs, the impacts of these animals are staggeringly devastating.
One, yes, weaponization and domestication, the two fates of almost every animal that comes across us. We want pets because we’re selfish and do not respect animals (I am guilty of this on several occasions), and we want weapons to dominate other political climates and people, to show how good we are compared to everyone else. This is the human way with nature. Why? Because we wish to survive, but unlike animals, we can adapt quicker and forumalte complex strategies to our own benefit. HOWEVER, innocent animal life should not be violated in our efforts.
Two, environmental damage. It is enough that we have decimated tons of habitat and polluted the rest. We have no space for dinosaurs to even survive, let alone copulate and produce a stable and large population. It simply will not do. They need tons of space, and many kilograms of food, which will up manufacturing AND potentially harm them as well, if we even decide they’re worth eating. Plus, if they do end up being commonplace domesticated pets, people will be STUPID and release them into the wild. Look at Florida, there are tons of invasive species because of irresponsible pet owners: Burmese and Ball Pythons, Lionfish, Iguanas, Monkeys, and so many more. Dinosaurs on any form of wild property will cause havoc, being invasive and destructive species regardless of diet, and increase competition and disabling the food web entirely.