Honestly man, this is a big learning point. In cases like this the person who can talk quicker and louder is gonna be bullying the conversation where they want it to go, but coming from the position of authority (ex: having already asked teammates, more experience) with being quicker/louder just makes you like a dick and childish. Maneuvering him into a situation where its been established (in the same convo) that the there is no more good will and professionalism to burn. It's currently at being cut or keeping his existing attitude out of the team.
Just laying it out will allow for deflection as you've encountered.
I learned this the hard way with a few of the guys in this thread and it took me too long to adjust once I became settled into the response of just riding it out as you are. It took me a handful of years and the tainted the highlights with my guys over time. If you dont or can't deal with the stress of it, step back or only go for chill/friend teams. I sure as fuck didn't even do that and i deeply regret letting it get that bad, as I can't really play the game or in the environment Ive had the most fun in.
Sympathizing/not-negative-words and expounding on why something works/is better is a good teaching tool if you are able to get him squared away.
tbh just go watch kevin is pwns new videos. His and marxists/ams? older teaching videos are probably the most concrete thing specifically made by/for the scene.