>>138523
>The message of "black lives matter" isn't for the people who already think it's true.
That is marketing in the same way "No Child Left Behind" or "The Patriot Act" or "Pro Life" work. BLM serves to shield the organization and its proponents from criticism because it makes a basic refutation of it look extremely bad. You've heard the automatic refrain, "So you think black lives DON'T matter?!?" enough to know this is how it works.
Whereas IOTBW-style propaganda baits brainwashed people into refuting it and looking bad in front of normies. BLM is a shield, IOTBW is a trap.
>>138517
OP's messaging can be improved by reducing the words. The phrase itself MUST contain its own justification and argument. The fact that you feel the need to use a parenthetical to explain it means it isn't at that level yet.
A better version would be pic related if only because it makes its own argument in itself and baits out the refutation that "being black is more than just a social construct!" But this only works in select environments where the messaging that "White is just a social construct" is universally known to the point of mantra. It will not work on those who don't know the whole "social construct" thing. In addition, it will work best only in areas that are familiar with the "racist" IOTBW style, as that further baits out the press that the statement would be "racist" - that is saying black is just a social construct is racist, which again is the hypocritical statement that might be the desired outcome. The operational component is "JUST", as that is diminutive and dismissive, which baits out the overreaction response.
But overall I am not a fan of it. One can see an escape from it going "all in" and saying, "Yeah, races are all social constructs and we are just People!" which is not the intention. Whereas IOTBW does not allow for such an escape. Another problem is your target audience does not have an opportunity to develop any affinity towards the message itself like with IOTBW, but rather just listen to the hypocritical backlash it causes. Finally, it only works in heavily leftist-infested areas where the level of rhetorical-familiarity is high enough to elicit the response.
Keep tinkering though. IOTBW is just a formulation of the idea, and not the only way it can be done.