> This is an absolutely pointless protest that will achieve nothing.

It will showcase the Finnish people's desire to continue supporting Ukraine against Russia, which directly contributes to the amount of political power the Finnish government has to send Ukraine more aid and defense materiel. It will without a doubt achieve something.

It's kind of like playing dumb and being a smug asshole towards people taking part in this protest. It won't cause Russia to immediately and magically win the war, but in a small way it actively contributes towards it by making fun of people opposing them.