Cleaner Waxes can remove coatings as has been proven.
Cleaner waxes can remove *some* coatings.
That said, I think the protection coatings can offer should be looked at in 2 ways:
1. Protection from physical marring and scratching, which I've found to be very, very minimal at best.
2. Protection from environmental incidents such as bird bombs and other goo that lands on the paint. I've found coatings to be pretty good in this area, some better than others.
Interestingly, considering that many coatings are marketed to higher end situations (OCD-ish folks, and others willing to pay $$$ for such work) the one situation where I've (accidentally) found that coatings really excel is in low maintenance, fleet vehicle situations. It's not the end if the world if these 'rolling billboards' get a scratch here and there but it is beneficial for them to generally look clean and shiny with minimal effort, "5 footers" if you will. Coatings, if chosen correctly with this in mind, truly do completely satisfy this need.
75% of our fleet where I work is coated because these were the only vehicles I had avaliable to play with when I was mucking around with a variety of coatings. These are "fire and forget" vehicles that I coated in winter and then received no attention until the next fall, about 20k hard miles later. Even the one's I did in March 2017 with products that turned out to be strong in the self-cleaning area still look good going into this season and will be shiny and, to the average person, look freshly washed with no intervention or maintenance. Obviously flaws and dirt will be found if examined closely but overall, the good ones continue to look fresh and clean wirh only Mother Nature giving them a bath on occasion.
As for coatings on a year round, black, 20k a year daily driver owned by someone who does find scratching and marring troubling...havent quite figrd that one out yet.