Most Zionists have a goal of preserving a Jewish majority for pragmatic reasons - history has shown that it's the only way to ensure the safety of Jews. That's not a supremacist ideology at all.
Moreover, no country is perfect, and we shouldn't have double standards just for Israel. Can you identify any other Middle Eastern country that compares favorably, in terms of diversity and tolerance of all religions and ethnicities?
"Judaism" sometimes refers to the religion, but many Jews are not religious. Jews are a group of people from Judea, hence its historical name. Some dispersion to other regions doesn't change where a group of people is from.
Moreover, no country is perfect, and we shouldn't have double standards just for Israel. Can you identify any other Middle Eastern country that compares favorably, in terms of diversity and tolerance of all religions and ethnicities?