Context: the Thin Blue Line is symbolism for the role of police in maintaining public order. It has been co-opted by the alt-right. There is also a Thin Red Line to represent nurses. The French Wikipedia happened to use it in a legend to explain what the red lines on a map mean.
It literally uses and links the image for ‘thin red line for nurses’: https://fr.wikipedia.org/wiki/Modèle:Début_Rue_Judaïque#/media/Fichier:Thin_Red_Line_for_Nurses_Flag.svg) as part of the map’s legend.
I don’t think it’s meant to be anything even remotely political or even intentional I just think it’s amusing. I have no idea what OP’s take on it is.
I also think a Finnish first aid course accidentally linking something related to the KKK would be incredibly funny. “Oh, right I forgot what the three Ks stand for. Thankfully they have this helpful link to jog my mem- uhhh…”
My take on it is simply that it’s amusing, i.e. mildlyinteresting
Oh gotcha. Yeah that seems like the editor just picked a random image with red line on it without thinking further