I feel like this would need protests well beyond the scale I can imagine any of the populations in these nations mounting, and that they’d have to be backed by widespread blockades & strikes.
But mostly that very little would slow Israel down, short of the US intervening militarily in the next few hours.
Am lucky on this one, in that my country is generally supportive of Palestinians and even our neoliberal government has been critical of Israel’s behaviour, now and also in the past. It is unlikely that they’d ban the protests.
Though if they did, it could easily result in far more people taking to the streets.
Wishing you all the best in your endeavours, wherever you are.
France bans all pro-Palestinian demonstrations (www.bbc.com)