ditton
An actual nuanced take that still uses an oppressor/oppressed narrative would recognize that it is multifaceted and depends on the context. Like, many trans-identifying individuals are oppressed in spheres such as employment and some public spaces, due to negative attitudes towards gender non-conformity. And also in terms of medical care which is either too restricted or doesn't have enough safeguards, depending on location. But also on the flip-side, that there are scenarios where they are the oppressor: such as women and girls being disadvantaged when trans-identifying males demand, and are granted by law and policy, the use of female spaces.
So from their perspective, the Palestinians are the oppressed, and Israel (or Jews) the oppressor. Any pesky details such as the near-constant rocket attacks by Hamas, or the October 7th massacre, get categorised as 'the oppressed fighting back' and a 'legitimate act of resistance' regardless of what that actually entails.
Similarly for LGBTQ+ advocacy, which in practice these days is basically just trans advocacy, the trans-identifying are the oppressed, and cisnormative society the oppressor. Even though much of the actual conflict here is a reaction to males demanding to use female spaces. Any sexism against actual women in this context is disregarded and discarded.
And then as you have observed, the overall 'progressive' viewpoint is to support all the causes of these 'oppressed' groups simultaneously while ignoring any cognitive dissonance, and rejecting any attempts to more deeply analyze any of this.