I agree this LW sounds like someone who's not admitting to herself that she's in fact homophobic. But as a bi person myself I've often struggled with young children's questions about Pride (flags, parades, symbols etc) specifically. I have no problem telling a child about how different combinations of genders can form loving relationships. But why do they need a special symbol or event? I am really reluctant to be the first person who tells a child about homophobia. In order to understand what Pride stuff is, it's necessary to mention widespread social prejudice against same-sex couples, and therefore raise the idea that being gay / LGBTQ+ is something that might be thought of as negative.