That's a bit of a leap tbh... while antisemitism is (usually) synonymous with racism when you're including things like a position that Israel shouldn't exist* under that sort of definition of antisemitism then it doesn't logically follow that all antisemitism is racist. It's perfectly possible for someone like
@Le Clandestin Brun to hold that position and therefore fall under that detention of antisemitism but also not be racist IMO.
If you're going to claim it is racist then you really ought to give an argument as to why it is racist rather than simply highlighting that it falls under a defention of antisemitism and simply concluding that therefore it must be.
It might we worth drawing a distinction between narrower definitions of antisemitism, something that has existed and could be defined before the state of Israel was created and that is generally describing racism towards Jews and "new antisemitism" which includes rather broader definitions that go beyond what could be summarised as just racism towards jews but also assumes that certain political positions are the result of some racism towards jews (and those underlying assumptions may or may not actually be the case).
https://en.wikipedia.org/wiki/New_antisemitism
*FWIW I think there should be a two-state solution, Israel should pull its settlements back from the West Bank and UN observers should set up a green line so to speak.