So.. anything not “Kosher” is anti-Semitic?
Wow.
Who is saying that? I think the original poster is simply unaware that the "Kosher for Passover" stickers or addenda to the packaging are generally only present around Passover. There are quite a few products which feature "Kosher for Passover" designation year-round, but in my experience those are the kind of products produced especially for kosher consumers and found almost exclusively in kosher markets.