Whether or not an emergency brake kicks in is ultimately the decision of the European Union, not the UK. The level of immigration at which it kicks in is ultimately a decision for the EU, not the UK. Even the level of benefits sent abroad is ultimately a decision for the EU, not the UK. Is it not clear that we are not sovereign in those areas of policy and do not have independent control over them? Ultimately, is not the decision in the referendum whether we want our own laws and our own borders to be determined here by ourselves or overseas by someone else?