One of the many insights I have gotten from my partner, and one that has helped keep my relationships with people solid, is to take 100% responsibility for any conversation. Not 50% and not 150%.
That sounds strange to most people; shouldn't each person have 50% responsibility? Actually, that means that no one is entirely responsible for their own participation. Instead, I take 100% responsibility for what I say, in whatever manner I want to say it, and I am entirely responsible for however I feel - no one can "make" me feel happy, scared, angry or sad.
Likewise, I can't take any responsibility for the other person's reactions. I have no idea what triggers her, or what her mood is right now, or whether she has 10 other things on her mind. It's her job to show up 100% on her end. If that means saying that she doesn't have time now, or that she feels angry, then it's her job to speak up.
Taking that into account, I have become more aware of how to communicate in ways that make it easy for others to take in what I say. That doesn't mean taking responsibility for the other person's reaction. Rather, I have started considering whether there is any "informational inequality" between us.
I might have a background in whatever we are talking about, and the other person may not, for example. In that case, I can cut to the chase and blurt out "We really need to do it this way. Trust me on this." And I will probably get some resistance. Fair enough; that would be my first reaction.
Alternatively, I could say "You know, I did a survey about that last year. One of the things I learned was {such-and-such}. And I realized that my initial assumptions about {whatever the other person probably thinks} didn't reflect reality. So that led me to thinking that we probably need to do ..."
The difference is that I paused to consider what the other person might not know, and to ensure that we both know the same things. If it turns out that we disagree about the underlying assumptions, at least we have identified the problem without anyone sounding like a playground bully.
When you I hear yourmyself thinking "I am surrounded by people who have no clue what they're talking about", I take a moment and think about what specifically I know that others may not. What are their underlying assumptions? Do I share those assumptions?
Yes, my inner Eldest-Child/Know-It-All isn't happy, but I find that a lot more gets done through the less-direct approach.