No, it is not inherently antisemitic to criticize Israel. You are not antisemitic for criticizing Israel. You are antisemitic due to the content of your criticism. When your criticisms are such obvious lies, when your criticisms go so much against what is actually happening in reality, when your hypocrisy is so prevalent, when it is transparent that you don’t care about the issue but care only because Jews are involved, then yes, you are indeed antisemitic.