If there is more than one AGN it meanse there is more than 1 galaxy.
You have not addressed the main argument of Arp, that redshift can be intrinsic..
If you say AGN's are associated with other galaxies than you agree with Arp...
Again that blog is biased and can not be used for any argument.
Either you are capable of explaining something yourself, or as usual you have zero actual arguments, you have to look everything up...it seems.