The Honfoglalás campaign finally make me give up

I was playing the campaign in AOE2 on hard since I never finished it 20 years ago, in later campaigns when the AI literally only spam and has no economy, it got annoying but I pushed through. I had quite a few 5+ hours in game time missions but I still had the patience to push through. Have to did suicide missions to kill off part by part of their production builds just to slow them down, fine.

And then I got to Honfoglalás. First few parts are still fine, since you are supposed to lose anyway. And then I got to kill the Bulgars. Like what the fuck is this? Not only does it has like 20+ production buildings, they BUILD MORE and will REBUILD unlike previous missions. So trading army for production buildings does nothing. Bulgars has like 100 villagers and I spend 3 whole hours (real time) doing hide and seek with them, I kill the left side, they rebuild on the left, I kill right side they rebuild on the left. All while they keep spamming units non-stop. The only thing I can do, that I can think of, is find all the stone in the map and build 30 castles that cover the entire area of Bulgars.

After 3 hours of real time high and seek I finally gave up. And guess what? 30 Croba cars stil ltook 15 minutes to kill them off. Like what the fuck is this? No econ spam units was bad enough, this mission even have them rebuild. And you know what? Turns out even AFTER the Bulgars, you have Moravians and have to do it again........

What happens to the creative campaigns early on? Why does every single mission later into the campaign ONLY spamming units? And then they double down and have them use 100 villagers keep running around to rebuild WHILE spamming units. They have 3-5 TC to spam vill to auto rebuild, 20+ production buildings to spam unit, keep running around the map, have no econ. I thought individually micro every single ranged unit was bad enough, and they they double down more and more. I enjoyed the campaigns early on, even the 11 range longbowman micro was annoying. But the later campaigns is really just stop being fun at all even they are well designed story-wise.