"but if you disprove it by mentioning black conservatives, they just assume they’re all stupid and dull"
Many black conservatives are stupid and dull. But again, it's not because of their skin color.
"without even having heard them (which is my problem with the left, often they don’t listen to the other side, almost like it’s a fear of being convinced that they’ve been wrong"
As I've mentioned before on this site, I listen to conservative Christian radio almost every single day. I listen to black conservatives and white conservatives, and I think they're all full of crap (all the ones on this radio station, not all conservatives across the board). Also, I could say the exact same thing about many conservatives, only listening to people on their side because they're afraid of being proven wrong.
"I listen to many people and politicians I don’t agree with...and sometimes it drains my will to live, but I do it so I can actually argue points with people about the people they’re supporting instead of talking out of my “you-know-the-thing”."
Cool. So do I.
"If you’ve heard both sides and lean left anyway, that’s fine. I won’t agree with you on much, but I can respect that you’ve actually come to a decision about what you believe instead of believing what you’ve been told to believe."
That's good
"But if you just keep repeating the media or what you were brought up to believe with no backing of what you believe (or poor backing), that’s naive."
I agree 100%