We need some major overhauls to our law enforcement system.

The problem I have with anyone subscribing to the notion of "ACAB" is that it's a failed idea from the start.
As famously quoted, "Insults are the arguments employed by those who are in the wrong."
-Jean-Jacques Rousseau

Why use such a polarizing statement if your actual intent is to make positive changes to our system? Repeating statements like "ACAB" will only further entrench both sides and shows that you aren't willing to be civil in any discussions for positive changes.

In summary, you're not going to win anyone over from the other side by insulting them.