A Pole damages Rothko's masterpiece

Just today it has been confirmed that a Polish "artist" Wlodzimierz Umaniec (that's what he calls himself), aged 26, was the one who damaged Mark Rothko's mural "Black on Maroon" from 1958, that can be appreciated in London's Tate Modern. That is like the saddest news of the week, if not a year, because now it seems that the Polish go to galleries to damage things.
However, Umaniec (calling himself an inventor of 'yellowism' whatever that is) claims to have done Rothko a favour, by "increasing the value of the piece." I don't want to live on this planet anymore...
Ps. the information can be found on some web portals under a tag "Poles in the UK"... Now the whole nation on the Isles is represented by a delusional megalomaniac pseudo-artist...
Ps.2. Someone dug deep enough to notice that Vladimir Umanets is an anagram of "I'm true vandalism," but for an "artist" that's not original at all, vide Tom Marvolo Riddle - I am Lord Voldemort.