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As a side rant:
"Specious accusations are often confessions."
I understand the psychology and casual use of absolutely worded reactions, and that their extreme expression is not taken literally, but as emphasis. But I still prefer balanced wording.
A surprisingly large number of people tragically clash and talk past each other over charged non-issues, that normal undramatic language would render moot.
I.e. "We must believe all X", vs. "We should listen to all X", ... and many more.
"Black Lives Matter Too", isn't as pithy. Nor should the last word be necessary for anyone to understand the three word version. But the fourth word, nodding to the wider context, pre-counters a lot of ridiculous responses to the original line. Not actually suggesting a sea change in a well recognized movement banner line. But it is a widely observed example of how any lack of pedantic clarity is seized upon by motivated reactionaries, to achieve politically significant impact via obtuse reinterpretation.
A little verbal pedantry is an effective speed bump against the siren song of motivated or inadvertent polarization.