I think we should try to answer this rather than just down voting.
I think the difference is that conservative thinking led to the policy that led to the person being targeted, and possibly also to a climate of intolerance that made the attacker/s feel like they had the support of the community to do that. We're not really talking about who is too blame for this individual instance (obviously that's the person/s who manslaughtered this child). We're talking bigger picture.
When an immigrant commits a crime, I suppose you would argue that liberal thinking created the situation where that could happen, but I think it's a false equivalence. Big picture immigrants don't disproportionately commit crime, and there are major benefits that come with immigration. While trans people absolutely are disproportionately the victims of violence, and there are no real benefits to transphobic policies.
I guess I haven't done great at this, please other people build on this reply, it just felt wrong to see a fair enough question just being downvoted with no reply.