Actually, it's not so much an irrational hatred - more of a continual disappointment. I'd really like an electric razor that was effective as a good wet shave - but I've never found one that even came close and I've tried all sorts over the years.
Back when I started shaving, electric razors were an expensive luxury item. They cost about a fiver for a cheap one, which may not sound a lot in the grand scheme of things, but to someone just out of school whose take home pay after tax and "lodging" (£5 a week to my mum) was around £8 it was a big outlay. So, like most youngsters just starting shaving back then, it was the old safety razor and lather for me.
The thing with that is that you get used to it - and get used to the excellent shave quality that you get from a wet shave. I didn't get my first electric razor until I was about 20 - a twin headed Phillips - by which time I'd been wet shaving for some years and in comparison it was useless. It spent most of its time languishing in its box in my drawer only coming out for holidays or times when there was no hot water of a morning - which, after I'd moved into my first flat of my own, was about one morning in three.
That was when I decided to splash out and buy one of those ones that "shave as close as a blade or your money back". It didn't and I didn't get my money back either - probably because I never asked. Since then I've tried various types - Braun, Hitachi, more Phillishave and others- and nothing has ever even come close to matching the quality of shave I get with a wet shave.
So I hate them - not because they are a bad idea, but because they are a continual let down.