"Indeed I believe Brexit happened because this debate wasn’t allowed to happen. People weren’t allowed to say that uncontrolled immigration from the EU had negative effects on their community."
There are a number of issues with this.
Very valid points Topcat but I think the extra point that could be added is that (some) voters confused all past immigration with the EU.
There seemed to be a hope or belief that Leave was the first step in getting immigrant descendants to leave. Much of the talk about Immigration negatively affecting 'our' community is a legacy directed at Indian or Pakistani descent immigration often from a generation ago. This of course was tiddly squat to do with the EU and all to do with the legacy of countries under British colonial rule.
Some other misleading stuff ignored the following:
The NHS was heavily reliant on EU migration- yup.
EU immigrants are often better educated than Brits - yup.
EU migrants less likely to claim benefits than the UK-born Brits- yup.
A third of EU immigrants only affect London- yup.
EU immigrants statistically increased demand for goods and services and created more employment - yup
Falls in wages after 2008 were due to the global financial crisis and a weak economic recovery- yup.
EU immigrants paid more in taxes than they took out in welfare and the use of public services- yup.
EU migration helped reduce the budget deficit- yup.
Brits not immigrants had the negative effect on local services such as crime, education, health, or social housing- yup.
Refugee crisis had nothing to do with EU membership- yup.
Refugees admitted to Germany had no right to live in the UK-yup.
UK is not in Schengen so there are border checks on EU immigrants- yup.
http://cep.lse.ac.uk/pubs/download/brexit05.pdf