AITA for thinking my parents don't accept me?

So my parents are rather devout Christians. Back in 2016, I came out as bisexual, but they told me to wait until I was sure. Of course, I was twelve at the time, so I understood. Now I'm fifteen and it's LGBTQ+ Pride month, and I want to go to the events/parades. However, my parents - more specifically my mother - said no. I have also asked for permission to join the Gay/Straight Alliance at my school, to which the answer was the same. Any time I bring up my orientation, she seems almost annoyed that I'm talking about it. She says that I'm "trying too hard to make it part of my identity" and "holding on too tightly to the community." I just want to embrace and celebrate who I am, but I feel like I'm not accepted in my home. Am I the asshole for thinking so?

Edit: please keep all discussions in the comments civil! 🤗 Update: I spoke to a teen worker at my church (she's also a close family friend) and she spoke to y mom about it. My mom said we'd talk about it. That was about two weeks ago. :/