They weren't there becaure they were appalled, they were there to stir up trouble, incite genuine protestors and further their 'Tories are scum' message.
https://order-order.com/2017/06/16/corbynista-ultras-involved-in-storming-of-kensington-council-hq/
"Corbynista ultra and veteran left-wing activist Tina Buckley is on the ground in Kensington tonight riling up protesters. Buckley was spotted outside Kensington Town Hall leading chants as the building was stormed by protesters.
Readers will remember her as the mad woman filmed wearing the same Jeremy Corbyn backpack just three weeks ago outside Downing Street, when she called Theresa May a ââ¬Å
terroristââ¬Å. In the past Buckley has been pictured with Jeremy Corbyn, John McDonnell and Clive Lewis."
https://twitter.com/richsuchet/status/875825015400345600
"This is a TV cameraman being attacked at the Grenfell protests. I saw it. Instigated by masked scumbags who weren't interested in protesting"