I didn't... it was too hard for me because my Polish was extremely limited and I was alone... I just laid flowers to the monument of Janusz Korczak and the kids at the Jewish Cemetery on Ulica Okopowa in Warsaw, and called it a day.We all have to do what we feel comfortable with, I found the guides at Auschwitz-Birkenau, Terezin and Buchenwald quite helpful, they had many guides who were bi-linguial in numerous languages.
I agree with you about learning about others but also, it is what you are learning that matters, of course if one is being say taught a math course by a teacher that has limited comprehension in the subject matter the results will not be as beneficial as those who have a teacher with a better and more extensive grasp of the topic at hand. Also, learning is a two way street, if the one side of the street does not wish to budge but demands the other side of the street comform to their side, well, thats where the fur starts to fly at times...

Yes, people are all like us, it is what they choose to be that matters but if they refuse to change or wish to continue a path of negativity towards one due to whatever reason, well, then the part from scripture shake the dusk from your sandles and walk away kinda comes to my mind, you do your best in this life journey, we are all responsible for our own souls.