this administration is already making proclamations that are not laws (Executive Orders and National Security Directives), which clearly violate 1st Amendment rights to free speech, and yet are being interpreted by states to go after specific groups (may i introduce you to Texas and Florida).
police already exist as an uncontrollable force within most cities who apply the law as they see fit.
do you think a combination of those two things isn't going to result in a tool like this being abused?
if you do think it will be abused and that isn't a red line, that says something about you.
if you don't think it will be abused despite the evidence that police abuse surveillance and the current administration has no respect for due process and that isn't a red line, that also says something about you.
circling back, i hope you never find yourself on the receiving end of the technology you want others to be on the receiving end of.
combine that with a federal government that increasingly says police can do whatever they want and the 1st, 4th, 6th, and 8th amendments don't apply equally anymore.
so, no, i don't think police should have access to incredible levels of surveillance or military-grade hardware.
Absolutely solid line, and about sums it up. Batting for practices or technologies like this is publicizing your myopia and lack of imagination for seeing it being used against you or your friends/family/property in due time.