Yes, I think the demonstration should go ahead, but it should be moved away from the main event and given no media coverage whatsoever. If these people want freedom of speech, they've got it - but that doesn't mean we have to listen.
Anjem Choudary is British. He was born in this country and is very well educated, so for those who say 'send him back', there is nowhere to send him. Having said that, he was co-founder of the banned Islamic organisation Al-Muhajiroun, he praised the attacks of 9/11 and 7/7, and he supports the implementation of Sharia Law throughout the UK.
For the record, I think the Palestinians have been - and still are - treated absolutely disgracefully, but last year's poppy burning episode, and the forthcoming demonstration, are both just the tip of the iceberg where Mr Choudary and his cohorts are concerned. I strongly suspect that these people would happily see all non-Muslim westerners dead, whatever their political allegience, and in my opinion anyone who doesn't recognise that is naive in the extreme.
To quote him in a CNN interview - “You can't say that Islam is a religion of peace, because Islam does not mean peace. Islam means submission."
That says it all. He's a dangerous man.