But the only principle he has chosen to defend is that UK citizens should defend our rights against those who would remove them. He does not make the economic case that immigration is good for our country, and that without it we would be much poorer, and not have the manpower to staff services.
Nor does he make the moral and compassionate case for accepting asylum seekers. Nor that those who travel to protest thuggishly in front of asylum hotels are abhorrent racists, intent on scaring defenceless men, women and children. People who have fled this type of behaviour in their own countries.