Iron Golems

Hey there, I have recognized a frequently reoccurring problem in my Minecraft. Whenever I build and release iron golems into the world, they don't defend themselves, and they're almost totally oblivious to hostile mobs next to them. They either fight for just a second then turn around in circles non-stop, or they just start running straight into a wall. They always inevitably die because they're not fighting...they just keep running into the wall while they get continuously pelted with arrows from a skeleton or eaten by a zombie... I have tried to recreate this scenario multiple times and the same thing happens every time- I build a golem, he strikes at a nearby mob that's attacking him, then he just gives up turns around real fast and starts freaking out against the wall, then he dies from the hostile mobs attacking him after several minutes of him freaking out. I've just assumed he's trying to get to the villagers that are outside...but this is frustrating because I don't understand why he has to chase the villagers down while he is clearly getting mauled by mobs, and I don't understand why he has to chase them down if they're right there outside the house he's in... he's literally next to them and killing himself for nothing.

You guys do a fantastic job with everything and I have never had any other problems in the 3 years I've owned this game. Thanks so much for your hard work! I love you guys!