Here's the thing. You said a "birds are dinosaurs."

Is it in the same clade? Yes. No one's arguing that.

As someone who is a scientist who studies birds, I am telling you, specifically, in science, no one calls birds dinosaurs. If you want to be "specific" like you said, then you shouldn't either. They're not the same thing.

If you're saying "dinosaur clade" you're referring to the taxonomic grouping of Dinosauria, which includes things from ankylosauruses to herrerasauruses to jackdaws.

So your reasoning for calling a birds a dinosaur is because random people "call the feathered ones dinosaurs?" Let's get tyrannosauruses and deinonychuses in there, then, too.

Also, calling someone a human or an ape? It's not one or the other, that's not how taxonomy works. They're both. A bird is a bird and a member of the dinosaur clade. But that's not what you said. You said a bird is a dinosaur, which is not true unless you're okay with calling all members of the Aves class dinosaurs, which means you'd call blue jays, ravens, and other birds dinosaurs, too. Which you said you don't.

It's okay to just admit you're wrong, you know?