It'd only be racist if they meant "Only black lives matter", but what it really means is that "black lives matter too".While "all lives matter" is a position of the white supremacists it is also the position of those who find "black lives matter" to be racist.
Then they should say that! (Although I think "black lives also matter" would be a better wording.)
Not when taking into account whether people getting shot are armed or not.Once you consider crime rates blacks are not being shot disproportionately--the whole basis for it is false.
1) The % of cases where the suspect isn't armed is far smaller than the differences involved.
2) Note that the "not armed" category includes things like realistic replicas and people trying to take the cop's gun.

