Supporting gay rights ≠ supporting trans rights
Supporting trans rights ≠ supporting gay rights
They don't always go hand in hand. They should, but they don't. Look at Caitlyn Jenner.
I'm not saying Beyonce doesn't support the trans community, but her silence was deafening...
That said, it's not her responsibility to get people out to vote. It was on the Democrats to properly educate people on HERO and why it was important to pass. Unfortunately, many got hung up on the fear/hate baiting by the right and couldn't look past it to see the bigger truth.
As Storm said to Jubilee in the pilot of X-Men: The Animated Series, "People fear what they do not understand."
Case in point.