Okay, so I have a few points: If some people say that disagreeing with Israel is anti-semitic, they are just wrong. I myself know a lot of Jews who disagree with the current Netanyahu’s government’s actions (so do I) and they are definitely not anti-semitic. It’s definitely valid to point out Israel’s mistakes in this conflict (e.g. occupation of the west bank, radical opinions of some politicians such as throwing a nuclear bomb onto gaza, etc.). No one can call you anti-semitic for that. However, if you support Hamas in their mission and call for the removal of the state of Israel, it can be considered anti-semitic because you practically ask for killing millions of Jews.

You have also mentioned that Israel is anti-Arab which is not true. Currently fifth of the population is Arab and they have exactly the same rights as Jews. Also I don’t understand how Israel is apartheid. The people who are supposed to be oppressed are literally under a different authority. That’s like saying France is apartheid because Germans do not have the same rights in France as French people have