The analogy would be asking the breast cancer advocate why they aren't talking about prostate cancer too or why only breast cancer matters.
But they only said " breast cancer matters" not "only breast cancer matters" and are trying to get movement on that particular issue. They are not saying no other disease should be fought, just that the focus of their movement is breast cancer.
Only an idiot can't see that or someone is purposely being dense.
I disagree (at least in how I understand the relevant context) and for the simple reason that breast cancer is breast cancer for everyone. Why would any particular group inside breast cancer matter more? Again, "lives" are all inclusive as is any breakdown inside of cancer. For instance:
All Cancer Lives Matter
All Breast Cancer Lives Matter
All Prostate Cancer Lives Matter
But look what happens when it gets exclusive.
White Breast Cancer Lives Matter
Black Prostate Cancer Lives Matter.
Now, can you argue for a second that those aren't true? OF COURSE the lives of white people with breast cancer and black people prostate cancer matter. (Or mix it up; Asian brain cancer, Latina liver cancer, male colon cancer, female pancreatic cancer, etc) Does it still not look pretty weird to see it expressed that way?
Look man, BLM is absolutely and overtly race exclusive. If I had to put a face on it why would George Floyd's death be world changing but not Tony Timpa's? How many people even know the name Daniel Shaver and why not?
If the original sin (or cancer) in all this is rooted in death by LEO and we unquestionably know all races (Note not just white or black) are affected then why would it surprise you that it raises some eyebrows (if not actual ire) when one subset inside that exact same all inclusive group sets themselves apart to "matter"?
On the surface I'm not sure why anyone would have a problem with the simple acknowledgement that "black lives matter". It becomes more problematic when one realizes it truly is definitionally exclusive. So if the problem is all inclusive and it's ok to be racially exclusive within the parameters of that problem everybody else should what...do a better job with PR?