When the Minutemen assembled at Lexington and Concord, they carried weapons equivalent to, or better than, the British who marched against them. Translate that to today. It just seems right for a citizen to possess a rifle equivalent to, or better than, the military arms of the day.
I love lever rifles. I love my 1894C and 1894CB. I love my .308 BLRs. But, I am under no illusions that my lever rifles are as tough as a true military type of rifle, and in the case of the Marlins, they will not project my will as far as my AR15.
I say this as a guy who is not a big AR fan, and finds my Mini-14s more ergonomic than my AR15. I just might trade off my AR15 someday, but it would not be for a handgun-cartridge lever rifle. I feel the "need" for a military-tough rifle. I might trade or sell my AR15 to help finance something like an M1A/M14 or a Garand.