It's easy, yet time-consuming to objectively prove that such a statement is factually incorrect. And yes, for someone who generally despises objectivity in media and has extensively written about that in PAD , I'm perfectly comfortable saying that " opinions " like the one of the posters and others that I'm sure you agree with like " AmourShipping is the entirety of Serena's character " or that " The show only focused on AmourShipping with Serena " and statements of the sort are objectively wrong.
And yeah, you're right, I generally don't waste time writing ripostes for flat earthism. You're asking essentially asking me to look at every Serena and Ash interaction and detail the time the anime spent on the crush versus other aspects of the relationship.
If you want me citing evidence in this thread itself, please see the post I made about the conversation between Ash and Serena in episode 40. Sure, there was some subtext of Serena's crush in the conversation, but I'd say any fair and accurate perception of the conversation would involve people coming away seeing Serena talking to Ash about her problems, Ash providing advice, and Serena taking it to heart.
You don't have to find it particularly meaningful as I do, as that's subjective and other people have stated that they don't, but that's the reality of the conversation and you can generally apply that to most of the interactions between Ash and Serena in the anime.