Anti-Semitism is prejudice, hatred or hostility towards Jewish people.
Criticism of the extreme right-wing Israeli government with their policy of genocide towards Palestinian people is not anti-Semitic. It is no different to criticising Trump. Criticism of Trump is not anti-American.
BTW – criticising Netanyahu and the genocide of Palestinians is not showing support for Hamas.
Hamas is a dirty terrorist group whose actions are repugnant to all civilised people.
Netanyahu and his government are evil bastards whose actions (of starving women and children and blowing up civilians) are repugnant to all civilised people.