You know systemic bigotry needs not intent, or context, from the individual, right?

I don't know but I don't disagree with it. It's also not what I said.

You seem to be arguing that your personal lack of hatred towards a group, and lack of direct harm, means your actions can't be bigoted.

I'm not. My feelings on the subject, hate or lack thereof, have nothing to do with it. I am arguing that consuming Harry Potter content or talking about it online is not equivalent to literally being transphobic or promoting transphobia. To make that determination requires context and intent.

And no, being forced to pay taxes is not the same as choosing to buy into something funding bigotry.

They are not directly equivalent though it's interesting that's the only example I provided you're addressing.

You're not forced. You have the choice to not and face those consequences. It's an awful and unfair choice that nobody should even have to consider but it's there. By choosing not to refuse to pay doesn't mean you're literally being transphobic or promoting transphobia and that's the point.

You can disagree with someone's choice to consume HP content or their decision to discuss it online but that doesn't make it literally being transphobic or promoting transphobia. That requires context and intent.

Transphobia, by definition, consists of negative attitudes, feelings, or actions towards transgender or transsexual people, or transness in general. Consuming HP content or talking about it does not meet that literal definition, until or unless there's context to support it and/or expressed intent, e.g. someone says "I hate trans people so I bought all the HP books to show my support".