Here's a piece in todays's Guardian by a Muslim vice-chair of Respect which bears on this - Muslims need to take part - Palestinian dispossession is a reason to participate in Holocaust Memorial Day, not boycott it :

Participation in this national event in no way legitimises or justifies the dispossession of the Palestinian people - in fact, remembering the lessons of the Holocaust does the very opposite.

We should be part of it because there are lessons from history which relate very closely to our experience today. We should be part of it because our refusal merely gives succour to those who peddle prejudice and lies about the Holocaust.
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I wonder who is going to jump in with "100 - look at me"