1) You are being antisemitic if we use the same criteria that you choose to apply to Donald Trump. In fact, your statement is worse because while Trump's comments can easily be seen to be referring to other background and characteristics not related to race, yours are quite clearly directed.
2) You examples are "completely different" in that you spoke them when in the context of Israel being at war and needing supplies now. The Jewish State has received congressional approval for the supplies and had paid for them already. Biden usurped the role of congress with an executive action to block the transfer of armaments/ammunition in order to "teach them a lesson". NO president before has ever done such a thing to the Jewish State.
3) You're trying to be antisemitic by carving out Israel as "not being jewish". You seek support from nonpracticing jews in the US to do this (reminiscent of what you do to practicing Catholics)