Mc is an unlikable rash with no redeeming characteristics. Everyone else is retarded. Since he was given power he acts like he's in the right even when he isn't. too much moralizing. The women in his harem are even dumber than everyone else. If this was even remotely realistic, the mc would have...
In isekai when mc goes to the new world it's most of the time some horrible stereotype-filled amalgamation of tropes about Europe but almost everyone other than the mc is an idiot. Hell, they even use names from different religions/mythologies European nations and mix them up. It's so annoying...