Thanks for asking! The correct term is “Reform Jews.” Reform Judaism teaches that change is ongoing; the reforming of Jewish tradition and practice is not something that concluded in the past, but rather is something that continues with each individual. Therefore, “Reform” in the present tense is the appropriate term.
According to Jewish custom, it is preferable to visit graves before a holiday, so that on the day of the holiday, we can focus attention on observing or celebrating.
The Holocaust is an important topic not only in Jewish history, but in the history of humankind. The topic is disturbing, and it is appropriate to feel uncomfortable and upset by the stories, the facts, and especially the images.