why do black lives matter? i still don't know???

All lives do matter, but that is considered racist now. 

Everyone’s lives matter. 

You've probably heard lots of people using the phrase 'Black Lives Matter' recently, but where did it come from, what does it mean and why is it important?

They're human beings.  That's why.  Sad that you're so uninformed that you've never heard of the Universal Declaration of Human Rights.  You must be far right-wing, am I right?  On, no, I'm not right.  You're another worthless Putin-paid decomposition troll.

For people who claim they read The Bible, they sure missed one of the biggest points.

They matter because ALL LIVES MATTER.