The reason that ‘bammers et al are instituting a federal police force is because they couldn’t get all the privately owned guns banned.
They want their zombie armies to be able to rampage unopposed. That federal “police” force will protect those zombie armies from the homeowners.
Letting zombie armies rampage unopposed did not work out well in Ferguson, in Baltimore, or anywhere else. At some point, when government fails to do its job, the people will step in and do the jobs for which governments are formed. At that time, I will be on the side of the rule of law, regardless of which side FedGov chooses.