so why blame Trans people
Why blame trans people? Why indeed MsJones.
A question you will have to put to the erudite sole who proclaimed to do so at the event. My own view is there may have been some people at the event who are so biased against trans people that they seek to blame them for many things and cast them in a bad light at every opportunity.
Perhaps you might like to watch the video? You should be able to catch what she says - just turn the volume up if you are a little hard of herring.