Cyclist/Driver hatred

Well, that's just the usual prejudice perhaps dressed up a bit because it comes from a 'psychotherapist'.

There are certainly problems with the socio-economic profile of cyclists and the resulting stereotypes--i.e., either fairly well-off middle-class people who see cycling as a status symbol, or rather poor people who are just losers in life (to be clear, I'm referencing the nasty stereotypes here, not the reality)--but any psychotherapist worth their salt (no pun intended) should recognise that significant psychological phenomena are likely to be encountered fairly evenly throughout the population.

If you cycle, you probably either don't have very far to go from home to work (meaning you quite likely have money), do a light job that doesn't require heavy tools that you carry (beyond the odd laptop), or have time and facilities to combobulate yourself should you become discombobulated on your ride (sweat, rain, etc.), etc. All of these things can incite jealousy. Or, indeed, you're just poor and obviously non-conformist and a menace to society.

Add to that things like the 'good for the environment' nimbus (the cause of that is actually when places one needs to go to are very close together, see above) very visible law-breaking (all road users break the law at times, drivers most prominently by not obeying speed limits, but is most visible when people cycle, e.g. the obvious red light jumping through an all-green pedestrian phase) and minority status, and you quickly arrive at views like those held by Ms Beresford, quite often because of individual incidents.