Honestly you are clutching at anything to deflect from the atrocities in Palestine.
No Iran has not attacked Israel first. The example I gave above of the IRA bomb attack in Warrington in the 1980s. It was horrific but did not constitute an attack, an act of war, by the Irish government on the UK. The UK couldn't have started randomly bombing Dublin in the hope of catching a few terrorists.
The recognised governments of countries and terror groups that operate there are not interchangeable.
Also your point above is ridiculous. I am sensible enough to know that unless I have spoken to every last person on the planet who opposes genocide in Israel I can't know all their motivation. I do not believe, for the very vast majority of relates to antisemitism. Because that is unnatural viewpoint into which people need to be indoctrinated. To be appalled at human suffering is a natural state.
What is your post? That Israel should be allowed to commit genocide and war crimes, and attack other countries because some people who want them to stop their warcrimes may harbour prejudice against their religion.
It's fucking genocide and attacking external countries (an act of war). It needs to stop full stop.