I'm not going to get bothered about people waving flags on a ceasefire demonstration. What does concern me is supposed socialists throwing class politics completely out the window and lining up full and square behind nationalism. Not because of any ideological purity, rather the opposite, it is entirely pragmatic - because past history says that is a really dangerous road to go down.
National liberation today, social revolution tomorrow sounds like a sensible idea. If there was a good reason for believing the strategy worked I'd be all for it (and once upon a time I was). But as Spain (in
Homage to Catalonia Orwell notes his ideological sympathy with the Communist position of aligning to fight the fascists, the problem being that in practice the dropping of class struggle was used to attack others), Algeria (as mentioned in the LRB piece), Iran, and loads of other examples show all too often it ends very badly for workers, especially the local socialists/communists.
That does not mean I'm arguing for nothing to be done, for people to simply sit about and sigh 'oh dear', socialists have to organise in the situation they have, not the situation that we would want.
Workers might be orientating around nationalism or populism and it is stupid and counter productive to simply discard people on that basis (and that applies not only in Palestine or Ukraine but also here). And national and/or populist struggles can be a way that working class expresses its itself against capital.
But some sort of notion of class struggle does need to me kept in mind. Not just for tomorrow but for today, for the feminist, queer and socialist Palestinians that are struggling not just against Israel but also Hamas.
(Not really directed at you
hitmouse more just riffing off your post)