Too long; I only scanned it.
You're not saying anything new. Well, not apart from that cute "era-troll" thing.The whole "I don't do well, so the game is unfair" angle has been played out in these forums countless times. Trust me, if you play a halfway decent game, most campers will leave you completely alone, and others will be nothing more than a minor inconvenience.
Disclosure: While I'm not a "proper" camper, my era progression is slow, and am almost always in the top 5 in my neighborhood. Most of my points are from buildings unrelated to battle, but, obviously, some are military. Combined with experience, I can usually defeat anyone in the neighborhood. This is impossible for those who progress at a fast pace, and unusual for even for those who progress at a more sensible, but still fairly fast pace. As a result, I can not only defeat anyone below #10 in the neighborhood, but I can defeat them easily. However, this gets tiresome, after a while. When I attack, it's usually either for a quest, revenge, or, on the rare occasion, boredom. My city is quite self sufficient, and there are plenty of other things to do in the game. In fact, not enough time is one of the reasons for my slow era progression.
None of this means that I don't know how to play defensively, though. Occasionally, I get into a feud with other neighborhood leaders, and some are significantly more powerful than I am. Also, I wasn't always this powerful. There are plenty of things you can do, and playing defensively can be every bit as exciting as playing offensively. I won't get into details, because the forums are already full of good advice, some of which I've given myself. Look it up.
The two pieces of advice I'll give you, is to be an active player, and progress at a sensible pace. No one feels guilty about plundering the bottom half of the neighborhood, because these are either inactive or bad players. This is where you find the pathetic cities, of the sort that makes you immediately dismiss a friend request, because you know that the player is dead weight, and will probably drop out of the game. Inno knows this, as well.
Campers, on the other hand, are, per definition, long time players. It may sound counter intuitive, but a long time player is far more likely to continue playing than a new player is. Many of them have also spent money on the game, and certainly are certainly much more likely to spend in the future than a random n00b. Many of them are also long time members of active guilds, where they help make the game much more interesting to other active players.
The thing is, as a n00b, you haven't proved your value to anyone, and that includes Inno. In fact, by complaining like this is the end of the world, you've given a pretty strong indication that you'll never be a long time player. You're certainly revealing that you don't know that this is a slow game, where you make your accomplishments over months, not days.
Hmmm... I'll give two more pieces of advice. First, start every new neighborhood by aiding all your neighbors. For most other active players, you'll be more valuable that way, than as a target of plundering. If they aid from Event History, they'll aid you right back, and won't attack you. Second, join an active guild, with at some experienced players in it. They'll be able to give you advice, and help you build a strong city. If you contribute to the guild, they'll even want to help you.
Since you're sure to complain about it: No, they aren't taking advantage of you. The benefits of being in a guild with high level players far outweigh the disadvantages.