Blue lives matter, and if people are disrespecting the value of the lives of police officers, its not racist to say, "Blue Lives Matter" in response.
Agreed. The problem is those who seek to push that some American lives are, indeed, worth less than other Americans. If not by deed, then by inaction. The problem there is that budgetary negligence isn't racist, it's economic.
Geneticists have proved that the traditional concept of race is bullshit. Too many variables. We're all over 99.5% alike. Skin-tone and facial characteristics are minor superficial differences.
The most religious in America also seem to be the biggest racists. Democrats slightly outnumber Republicans as Christian voters but the Republican ones are mega-church Evangelistas fleecing the poor of their pensions as per their right under Prosperity Christianity. TBH, it's all a little weird to me having a quiet Protestant upbringing.
The Democrats rally minorities when they need them using the Race Card but the rally is usually "Free Money". They changed a bit with their "Free College" rallying cry for Millennials.

