citizen arrest sounds like something me as a permanent resident, not a citizen, don't have a right to do.

WHAT IF....
Guy with knife turned around and started walking in a different direction.
Guy with knife dropped it and took off running.
Guy with knife dropped it and charged armed GG.

Maybe it's the time to apply for the US Citizenship?

https://www.dol.wa.gov/business/securit ... rrest1.pdf

Department of Licensing
Summary of Citizen Arrest

October 11, 2005

Citizen Arrest in Washington State

Under Washington law, a private person can conduct a citizen’s arrest for a
misdemeanor if the misdemeanor: (1) was committed in the citizen’s presence and
(2) constituted a breach of the peace. State v. Gonzales, 24 Wn. App. 437, 439,
604 P.2d 168 (1979); Guijosa v. Wal-Mart Stores, 101 Wn. App. 777, 791, 6 P.3d
583 (2000).

A person can also conduct a citizen’s arrest for felonies. See State v.
Malone, 106 Wn.2d 607, 724 P.2d 364 at FN1 (1986) citing State v. Miller, 103
Wn.2d 792, 698 P.2d 554 (1985) and State v. Gonzales, 24 Wn. App. 437, 604
P.2d 168 (1979).

RCW 10.04.020 provides for a citizen’s arrest at the direction of a district
court judge, as follows: Arrest -- Offense committed in view of district judge.
When any offense is committed in view of any district judge, the
judge may, by verbal direction to any deputy, or if no deputy is present, to any
citizen, cause such deputy or citizen to arrest such offender, and keep such
offender in custody for the space of one hour, unless such offender shall sooner be
taken from such custody by virtue of a warrant issued on complaint on oath. But
such person so arrested, shall not be confined in jail, nor put upon any trial, until
arrested by virtue of such warrant.

While Washington has no statute concerning citizen’s arrests generally,
RCW 9A.04.060 provides that the common law is applicable where not repugnant
to the provisions of the state constitution or statutes. Gonzales, 24 Wn. App. at
439; State v. Miller, 103 Wn.2d 792, 795, 698 P.2d 554 (1985).

Application of the common law doctrine of citizen’s arrest is demonstrated
in the synopsis of the case below:
Instruction on lawful arrest in prosecution for third degree assault,
arising from defendant's resistance to apprehension by store personnel, did not
improperly state the law; although language was taken from statute which sets
forth defense available to store personnel who have detained a suspected shoplifter,
statutory language was consistent with common-law right of citizen arrest which
permits detention of a suspected shoplifter on reasonable grounds. State v. Jones
(1992) 63 Wash.App. 703, 821 P.2d 543, review denied 118 Wash.2d 1028, 828
P.2d 563. Assault And Battery 96(3); Criminal Law 808.5


Moreover:
https://www.atg.wa.gov/ago-opinions/arr ... en-officer

jackass

I believe the term you are looking for is disparity of force.

Suddenly, I'm glad there's a poster here named jackass...

Why do you say he should apply for citizenship, nothing you quote states anything about that?