You are attacking him personally and that isn’t allowed. Why? He doesn’t need to have the credentials in each and every area as he carried with him the scientific studies of others who do have the credentials.
You need to learn to think beyond personal attacks and denying science, realize that you can’t attack the messenger, and if you do it’s left wing tactics to do so.
Well, I know it is out style lately, but I think being factual is important for making an argument in order for it to have credibility. Again, I know that’s out of fashion these days, and apparently it is with you since you believe it is irrelevant. It’s “personal attacks” to simply care about or state the facts. Some on the right continue to become more and more like the Left every single day.
There’s also nothing “scientific” or historically accurate about what he said. Straight out of the gate he recites the bogus nonsense about animal studies. But to you, that apparently doesn’t matter. Narrative above all! If you care about the facts, you are “denying science” - another favorite line previously used by the Left.