Someone's identity can and often does influence their politics, but they are not always in alignment, and their identity certainly doesn't negate their positions that are harmful towards others who share parts of their identity (all of this is often done in exchange for personal gain with these famous people who make a living off all this).
[1] By most measures, Palestine is more "right-wing" than Israel.
No matter how much overlap there is between Jews and Zionists, it is one thing to criticize someone for their position on something and a whole different thing to criticize them for their ethnicity. That "whole different thing" is prejudice, which helps nobody here.
The VERY FIRST SENTENCE of your wikipedia link says: "Laura Elizabeth Loomer (born May 21, 1993) is an American FAR-RIGHT political activist, conspiracy theorist,[b] and internet personality." (caps added for emphasis)