Do you understand the concept of "logical validity" [1]? The argument you stated is valid if "dangerous" means exactly the same thing in each and every clause.

Do you understand the concept of "logical validity" [1]? The argument you stated is valid if "dangerous" means exactly the same thing in each and every clause. That doesn't mean the premises (in particular the first one) are true. [1] https://en.wikipedia.org/wiki/Validity_(logic) https://en.wikipedia.org/wiki/Validity_(logic)