“The protestor had the words ‘Childrens Rights’ written across his chest in English.”
First rule of a protester.
Make sure your message is clear and that your signs, either on placards or your body are grammatically correct.
It also could be the Thai copywriter’s error.
I like the sign: for a long time the gay propaganda was that no one is hurt by their shenanigans. We should point this out at any opportunity: gay “marriage” is robbing the children of their childhood and their identity.