Don't ever remember seeing a fat guy in lycra on a cycle myself. The males who are idiots all seem to be dressed in jeans, usually without helmets.
She's not far wrong in this it lady cyclists are much more polite and respect other road users than your average fat guy in lycra.
The best of all though was the one taking his dog for a run. The poor dog was left to run on the outside too so s/he (didn't look too closely as I was driving at the time) would be the one to get hit by the car first. That peabrain (bloke, that is, not dog) wasn't wearing a helmet either. But he was wearing jeans.