I start by saying I am a member of our green party and quite left wing.
That is the point of having separate communities. The mods get to set the rules and can remove what they want.
The exact same thing would happen if someone posted a right-wing news article on lemmygrad.
This is not humour, this is low effort trolling. Using an account called throwaway just shows this.
You will never change someones views with things like this.
It just makes the poster feel righteous without actually doing anything positive.