It was a common occurrence to see things like pictures of muslim women wearing headwear and a title of “It’s a diaper for their shit brains!”. There is casual racism, hatred towards minorities, and to top it all off, participants seemed to believe that there was nothing wrong with any of this, like you see above.
Unfortunately, reddit seems to have disabled searching in The_Donald, so I can't poke around for what you describe. I'm not saying what you describe didn't ever happen, I'm sure it did, but calling it "common" is a strange exaggeration.
There was __plenty__ to dislike about T_D. No need to invent extra stuff.
Do you really use reddit search? Because it is a steaming pile of uselessness. You can still visit or subscribe to /r/the_donald, so I don't know if you're making this up or if you just don't know how to use reddit.