There should be zero tollerence to race hatred not only with regard to EU citizens but also antisemitism, islamophobia, the use of banned Muslim Organisations flags flying and any hate preaching by religious or indeed any person in the UK.
I am not excusing any bad behaviour, I am not denying it is happening but I am saying Brexit has a role to play but Brexit is not , has not been the sole reason for hate crime.
Remember how at times, even on GN, some are quick to blame the far right for hate crimes! Take the imam murdered in Rochdale, it turned out to be a fellow Muslim. The fire at the Baitul Mosque was reported as being an islamophobic attack, it turned out to be a 14 year old boy. There was the case of two Eastern Europeans who were arrested for bomb attacks on mosques in the midlands.