What about "all lives matter" ?
Well, because I've heard it stated that the fundamental point of the message is to communicate the perception that black lives have less value than white lives. This being the case, the phrase "black lives matter too," would be more effective at communicating the core idea of what they're trying to communicate than either "black lives matter" or "all lives matter," both of which are more broad, and thus, more ambiguous.
I have no problem with people wanting to communicate their perception of inequality in society. I just think if you're going to do it, then it would be more effective and productive to use unambiguous phrasing, and avoid emotionally-loaded language, if you're goal is actually to try to get other people to understand your message.
Assuming that "black lives matter too" is a less ambiguous, and more direct communication of what their message is, I'm just wondering how many people would willingly make this small adjustment in the interest of effective communication. And, if people are not willing, I'm wondering what their rationale would be, and what their true motivations actually are then.