You were saying?
Do try harder.
The anti-Polish graffiti was discovered on Sunday morning. The articles you provided only mention official statements being made on Monday. Why the delay?
Even then it was only your out-going PM who actually made reference to the Polonophobic attack on POSK as quoted by him in the Guardian. The Standard article makes just a passing reference to the racist vandalism. The mayor actually made no direct comment about it.
Indeed, read his official statement. It's all generalities.
london.gov.uk/press-releases/mayoral/standing-together-against-hate-crime-0
Unfortunately Polonophobic bigots are completely ignorant and they absolutely do need to see and hear specifically from political and community leaders that their particular brand of racism is and always will be unacceptable and never tolerated.
Dispensing platitudes about diversity mean nothing if someone in of all things the position of mayor isn't willing to identify Poles by name as being an important, integral and longstanding part of London's and Britain's community and history and that Polonophobia in any form will be met with immediate public condemnation as well as the swift application and full fury of the criminal justice codes.