Ad Hominem is saying that something is invalid because of who the author / speaker is. I didn’t say that these ideas are likely to be invalid because they come

Ad Hominem is saying that something is invalid because of who the author / speaker is. I didn’t say that these ideas are likely to be invalid because they come from people like Peter Singer. I said based on the inclusion of people like him, it’s clear (to me, at least) what kind of ideas this journal will be discussing.