See, I could just about understand the Ewoks taking out a stormtrooper force because stormtroopers and AT-STs are the worst possible choice of force to occupy or invade a heavily forested planet and the Ewoks are capable of carrying out a guerilla campaign. I could get behind when Palpy goes down the first time alongside an entire Imperial fleet that this would be such a crippling blow to the Empire, and it's implied that there are Rebels all over as well as merely on Endor. That would be enough of a damaging blow for the Empire to agree to a peace treaty of sorts. However. The First Order reigns SUPREME, we're told, and the Resistance is reduced to just a few ships engaged in a slow speed chase and/or the base on Crait. The Republic disarmed entirely. Are we to assume that hundreds of thousands of ex Rebels dusted off their blaster rifles from the attic and reformed all spontaneous like?
Here's what I'd do if I were the head of the First Final Order after Palpy's been a splode:
Find one of the people who invented the Death Star Destroyer cannon. Get him to build a couple more and mount them on existing Star Destroyers. Exterminatus Endor, Jakku, and Bespin and anywhere else where guerilla warfare is likely to break out. Flood everywhere on the fence with stormtroopers. Given that each Star Destroyer holds a division or two of them, manpower is not likely to be a problem. Then set up an inquisitorial squadron whose job is to find potential Force sensitives and arrange for them to have "accidents." They might even be able to use remote versions of the midichlorian detector that Qui-Gon had.
But no, they all just give up and go home. Ugh.