This has gone from being mildly annoying ("hey, its Minecraft! this things happens") to actually tiresome.

I have this 1.13 village I've been working on. I've done some re-organization here and there, some walling, a subway station to my base and a nice golem grinder because free steel iron, right?

Well, enter the illagers and a raid. I've gotten mixed luck with this, one of these raids completely wiping out the whole village. I'm on single player and didn't really wanted to go to the subterranean dungeon with a zombie spawner, so I just went to creative, got some eggs and laid out the origins for my "new" village. (As a side note, I found a villager hiding in the nether who is now at my base, but more on this later).

Came back one day. Half of the population was gone (we are talking 6 villages with high ranks). WTF.

I walled the whole village. I put lot of lights. Re-built zones where the villagers could get hurt or stuck. Walled even the god damned beach, as it looked that some drowned could spawn and come at night. Because, obviously, my dear villagers leave the doors open when going to bed. Blocked the subway entry and the golem grinder with steel iron doors. Also blocked the entry to the walls.

And now the fucking illagers spawn inside the city walls.

I "leave" the village to keep working on the wall (it has two walls, and an inside hall to shoot from it to the incoming illagers) and when I come back there's only 2 villagers alive and a Illager squad doing their thing in the town. I mean, come fucking on, man.

I started my own "ark project", taking some of the most useful villagers to an underground, closed, complex below my base, but I'm starting to fear I will have another illager spawn below (Had several already near my base), or I don't really know what anymore that will kill/despawn/whatever my villagers. I've re-started so many times the population/organization intent on my village that its not funny anymore: If is not for the illagers, is because fuck you. Maybe I'm not getting something, or maybe is that having a well-organized town that actually can survive a raid is just impossible (I mean, the last one one of the ravagers spawned inside the village walls, again, because fuck you).

So, what can I do? Am I not getting something? Should just abandon the village, take the survivors to my base and enclose them in what is starting to look like a cheap fallout ripoff?