Ah yes, "we need rifles to protect against government tyranny". It's an absurd argument but it is pretty much the only one left, I guess.
Again, Gas, you're lying about how things happened in Iraq. We didn't get chased out. The Iraqi government asked us to pull troops out. We did. Daesh temporarily captured areas in the wake of the pull out and have been losing ground for two years to Iraqi national forces and Kurds in Syria. That is a very significant difference from "the guerrillas chased us out with our tail between our legs".
So in the event that all the things ammosexuals fear come to pass and armed rebellion against the government seems to be the course of action, let's look at what we'll be dealing with.
The gun that ammosexuals feel is necessary for their freedom, the AR-15 type rifle. 5.56mm high velocity ammunition, effective range of about 500-700 yards. 30 round box magazine. Great for gunning down clusters of unarmed civilians in schools, concerts, and restaurants.
On the other side, you have Predator drones with Hellfire missiles, AH-1 Cobra attack helicopters with 30mm chin turrets and rocket pods, the M270 Multiple Launch Rocket System, and the M109A6 Paladin self-propelled howitzer. The M109A6 can halt from being on the move to being ready to fire within 30 seconds, can fire unassisted 155mm high explosive shells up to 18 miles and rocket-assisted rounds up to 30 miles, and can fire at maximum 4 rounds per minute, with a sustained rate of 1 round per minute. It doesn't even have to be in the same county to hit you, and your first warning will be the shriek of the shell as it descends on your position. The M270 can fire rockets loaded with submunitions up to 45 miles and deploy over 20,000 grenade-sized submunitions capable of clearing a square kilometer of terrain. While neither the M270 or Paladin are especially well armored by ACV standards, they are impervious to small arms and resistant to shell splinters.
Also, it's worth noting that the T-28 tanks that the Russians invaded Finland with had poor suspension (a real impediment on rough terrain), an operational range of 140 miles, a top speed of 23 mph, and after upgrades, 80mm of frontal armor. It was vulnerable to fire - molotov cocktails could cause the engine to overheat and the ammunition to cook off - and was nearly incapable of fording rivers.
An M-60 MBT like one might find in a National Guard Armory, by contrast, has a very sophisticated suspension, an operational range of 500 miles, 258mm of frontal armor, and can be buttoned up to resist NBC attacks and ford rivers up to 4 feet deep.
So that's really an apples and scorpions comparison.