I completely agree that throwing milkshakes etc. is wrong. Even if it's Farage or Robinson, the law is the law, and it's counterproductive to allow these buffoons to paint themselves as victims.
However I won't be lectured on hypocrisy by anyone who supports the right wing nutters, racists and fascists that support Robinson and his ilk.
They back the law so much that they can't wait to have a scrap with the police when they get a chance, and routinely threaten, intimidate and abuse anyone (but especially for Robinson, journalists) who dare to challenge their views.