How is it a leading question?
i.e. The OP doesn't need to answer yes to their question for OP's claim to be true, yet their question pretends otherwise. (non sequitur)
I did not say anything of the sort.
"Designers" => "Design"
>Front-end, UX, design, and product have become one role.
Ok so, are your "designers" (now part of one role) not debugging react code? If they are then you mislabeled the question as leading to avoid discussing in good faith. If not, then you lied about the "one role" and it turns out that they haven't BECOME "one role".
This motte-and-bailey strategy is unproductive and disrespectful to the people you are addressing.