No, that’s not defense. Defense is shooting down the Iranian missile attacks. Legitimate defense is why Biden approves sending support to Israel.
Isn't killing occupying Israeli forces committed to genocide defense?
It isn't just missile interceptors:
https://www.google.com/amp/s/www.bbc.com/news/world-middle-east-68737412.amp
If they keep using weapons we ship them "for defense" for genocide then we are shipping them weapons for genocide, you can't just feign ignorance when it is so obvious.