Plus what is it with their love of the word Zionism
A Zionist is literally a person that thinks Israel has the right to exsist and Jewish people should be also have the right to self determine like everyone else. That is basic Zionism. Nothing nasty or sneaky. There are different types of Zionism but these people are not being specific.
Therefore they are basically referring to most the world Jews like we all are Israeli or something to do with the Israeli government most the time they use the word. I can't think a single other group of people that have to put up with that type of racism from people that say they are anti racist.
Some mumsnet users are guilty of this too. I have no idea if the just write Zionist because they are too lazy to be specific or don't understand what the word means or don't believe Jewish people should self determine or don't believe Israel should exsist or just being racist. Whatever the reason I pretty much just checkout and don't take the user very seriously once they say Zionist or Zionism in a post because they are majority of the time using the word in the wrong context or have not been specific about what type of Zionism.