Unless you have evidence for the latter, there's no point spreading conspiracy theories from the left. If you have reason to suggest why that might be the case, please present evidence otherwise I must ask you to withdraw that accusation. People who make claims bear the burden of proof. Extraordinary claims carry an higher burden than otherwise.
There's no meaningful evidence, at least electorally to suggest it did. This article points out that electorally it didn't make any real dent:
https://www.thenation.com/article/po...ng-the-police/
To which I say, in the words of Richard Nixon in SECRET HONOR:
If people, educated adults of voting age, are so easily cheesed off by a slogan that they cannot overcome their curiosity, then those folks are never allies to start with.
From an electoral perspective in a 2-party system with FPTP obviously messaging is important and so on but again that's not the fault of the activists.
Hmmm...this quotation came from BLM George Floyd protestors who went out marching and started the biggest protest movement in the 1960s creating a groundswell of public support and anger (none of which has faded) for creating some of the first meaningful police reforms in decades.
So I question this assertion, this hiding behind flimsy proverbs, which implies that the people who formed this slogan or used the slogan in 2020 weren't part of the solution. Let's be clear the Democrat Party are not the protagonists or main characters of the story for the struggle against police brutality. Activists have mobilized at multiple levels for decades with and without the support of the party functionaries.
Unless the Democrats are willing to become the Bolshevik party and Comintern and start policing and micromanaging or dictating activist movements, they have no grounds to criticize the latter.