Well, this is reductionist garbage. The title is a lie since this is cherry picking a single, albeit the largest, of too many nazi concentration camp. The range of time, two months vs over five years should also hint at the inaptitude of the comparison.
There are lots of better ways to say that Israel's government are fascist scum who kill children for sport. For anyone with a little knowledge of the sheer scope of nazi effort to exterminate jews, communists and others, this makes the opposite point of what you think it does.
The horror of the german concentration camps was the systematic industrialized killing of people. When critizising israel you can call out the apartheid structures, the attacks on civilians or the settlements outside of israel. However the holocaust being unparalleled in history isn't just a phrase and using quick comparisons for humor isn't funny but downplaying one of humanities darkest moments.
That said, it's been horrifying to realize that the current leadership of Israel appears to have learned only one lesson from the Holocaust: This time, we get to be the Nazis.