We are complicit in that our government is licensing arms to Israel, our publicly funded universities actively engage in R&D which benefits Israel, and our publicly funded public services are complying with communications and security sharing with Israel. In fact the university I teach in is actively involved in developing communications tech sponsored by companies such as BAE systems.
Parts for military jets, radars, communications, small ammunitions, armoured vehicles, technology used for precision and drones. All licenced by the UK for the benefit of Israel, despite these being used to commit war crimes.
So when your taxes are being spent on illegal acts of war you do not have the right to kick up a fuss?
And Israel has for a long time established itself as a place of western values in the Middle East, with liberal values and ‘friendly place for LGBT’, membership of OECD, western media engagement, close US and EU relationships, positioning itself as ‘a bastion of democracy and freedom amongst the chaos of the middle east’ etc etc. So its exceptionalism is Western, because it is perceived as such.