My view is simple.
If they're trying to get here to get involved in our politics, fuck 'em off. Doesn't matter if they're right wing, left wing, or vegetarian - foreigners have no place getting involved in our political business
You’re entitled to your view. By that token we should have equally denied entry to any foreigners speaking at other marches and rallies then, no?
I’m consistently pro-free speech, but recognise that free speech isn’t unlimited. IMO free speech advocacy rests on a core principle: protect the expression of ideas (even repugnant ones), while allowing consequences for direct incitement to imminent violence or lawless action. Basically J S Mill's harm principle.
The challenge is drawing that line rigorously, without letting “might cause unrest” become a vague pretext for viewpoint discrimination ….. which is exactly what I think we have in the UK right now.
I think some of the people banned are repugnant, but that’s not the point. You can advocate controversial policies - mass deportation, criticism of Islam, “remigration,” multiculturalism’s failures, etc. without it being ban-worthy. These are political opinions that should be subject to debate.
If we’re going to ban people I’d expect to see evidence of, specific past conduct (organising riots, convictions for violence, credible threats); explicit statements calling for illegal acts in the immediate context; patterns of behaviour where entry previously led to documented disorder caused by them (not just protests against them). Again I don’t see that with the individuals I’m familiar with.
I think this is preferable to Government asserting “pre-crime” based on opinions, social media history, or “far-right” labelling.