I don't see what the big deal is. After all, it's my
poo in there (and my families). Use plenty of sanitizer, and plenty of water to keep everything very liquid. RV t.p. breaks down, so it doesn't clog when you empty it, so yes, use it. I empty my Curve into the sewer line clean-out in the yard, and clean it with regular toilet products and a garden hose. A couple thorough rinses, and its odor-free. Wash your hands when you're done.
A PP is a necessary tool in some places (e.g. Canyonlands White Rim Road) where it's not only NPS policy, it's the responsible thing to do (packing out ALL of your waste). It also comes with the territory when rafting long rivers (and believe me, a PP is waaaaay better than ammo cans! Or even River Toilets). Furthermore, as a big-wall climber and alpinist, I've been packing my poo off climbing routes for twenty years - again, it's the right thing to do. Mountaineers all over the country do it regularly, because waste being thrown into glacier crevasses for the past ~100 years is starting to come out the terminus in many places - and contaminating the water. Blue-bag type waste removal systems are required everywhere from Denali, Mt. Rainier, Yosemite, Zion, etc. Many NPS and permit-regulated backcountry river units will "weigh" your containers at the end of your trip, and if they've deemed that you didn't properly pack out, you may be assessed a fine.
And frankly, I've seen so many disgusting things in the front- and back-country woods and deserts that cleaning up my own stuff doesn't bother me in the least. What bothers me is when I come across someone else's mess in an otherwise pristine place. Do some research - your poo and paper DOES NOT decompose the way you might think!!! Studies have found alarming contaminants in poo buried for countless years.
As a wilderness steward / federal land manager / backcountry enthusiast / environmental protectionist / recreation manager, I would be remiss if I didn't say: STOP POOPING IN THE WOODS! Be responsible for your business. There are way too many people recreating in our parks and forests, and the ecosystem cannot sustain the, ahem, contributions.