Your quite right , he did label is racists and implied that the use of a green light on the car roof was a covert signal to the public that the approaching driver was Irish. I remained him that at that particular time, Dunnes stores were running an ad campaign stating the difference is were Irish. Also Pamela Scott group of shops had a campaign stating we are Irish and our products are superior infact the government themselves ran a campaign stating we should buy Irish, for the presiveation of Irish jobs. To this day you can STILL see signs around the place saying buy Irish, support Irish jobs