Are these posters the quality tourists that they claim that Thailand needs in place of the Russians, Indians and Chinese?
Talking about carrying guns and baseball bats? What sturdy men we have here.
Getting to the topic rather than puffed up keyboard warriors praising themselves, the only acceptable reason for the Brit continuing to ride alongside the car, is if the driver caused some damage to himself or his bike. If not, then he was simply asking for trouble. His request was fulfilled.
Even if you can take care of yourself, de-escalate. Take note, 'hard men' and keyboard warriors alike.