I've heard that before, but the vast majority of infrastructure in Dublin city centre is dedicated to private cars, even though the majority of commuters into the city take other modes of transport. The evidence on the ground would suggest they hate the others more.
Perhaps once upon a time what you say was true and infrastructure was built for private cars. It's been a long time since that was the case! Since the early eighties, it has been all downhill for car infrastructure. There has been:
- a constant increase in bus lanes
- and quality bus corridors
- increased traffic light priority for buses
- constant removal of on-street parking
- increased parking charges
- introduction of clamping
- increased cycle lanes
- bus gates at college green
- widening of footpaths into roadway space
- ongoing reduction in speed limits
- "temporary" traffic restrictions for luas works that turned out to be permanent
- ramps and chicanes to slow car traffic
Against all that, I struggle to think of a single instance where more infrastructure has been provided for cars in the last few decades. So indisputably, the people now in charge of Dublin's transport policy have implemented huge changes that favour cycling, bus, luas, and dart over private cars.
There is no evidence whatsoever the people currently in charge hate these other modes of transport more than they hate cars. Quite the contrary.