Again, this is simply a poisonous statement, designed to offend and ahistorical. You can easily compare them to any number of colonial powers (European, Turkic, Persian, Han, Malay, etc.). You could compare them to North Americans (who depopulated, unwittingly at first and then purposefully, nearly an entire continent). You could compare them to Iberians, who marginalized and/or decimated the native peoples of all of Central and South America.
You could even compare them to the Arabs, who built the Al-Aqsa Mosque right on top of the holiest site of Judaism, the Temple Mount, marginalized the remnant of Jews still living there and fabricated a mythic night journey that never happened in order to lay a religious claim to the city.
Colonizers do shitty things to the populations that are already there. Israelis are probably in the middle in terms of nastiness - not angels but certainly no worse than many others occurring right now. If you want to argue that Western nations shouldn't be funding them, or that as a democracy they should behave better, that's fine - but let's drop the Nazi comparisons. There's no comparison there.