I genuinely think it's good to listen to what people have to say and you can either agree or disagree. Why is it that people instantly invalidate someone's opinion and tell them to shut up if they are lower on the k/d.

In one of my bronze games, I asked if we could buy spectre/full armour after winning pistols, the response was that I shouldn't talk with a score of 8/12. To be fair, I see this a lot in prods stream too where his teammates were questioning his decisions and he invalidates their opinion by stating their k/d.

On another note:

Don't be too confrontational about your teammates decision even if it's not "ideal", aim and gamesense takes hours to practice, it takes 0 seconds to be polite.