So I started my post stressing that I am absolutely not suggesting that what happened after the Iranian Revolution would happen in the UK - so other than to ridicule or diminish my comment without a real counter argument with evidence, I'm puzzled as to why you think that I am predicting "a bloodbath" if the Greens were to achieve power in the UK.
Instead I stated that the "Red-Green alliance" or "Islamo-leftism"—is unstable due to fundamental differences in social values, goals, and ideologies, despite their temporary convergence against common adversaries of capitalism, Western foreign policy or Israel.
The fundamental differences are that left favours individual liberties, LGBTQ+ rights, feminism, race and identity and secularism, whereas Islamists favour religious governance, traditional family structures, and submission to religious law.
By way of example of this "coalition" breaking down occurred in the City Council of Hamtramck, Michigan where an Islamo leftist victory elected a Muslim majority City Council and Mayor.
This then banned LGBTQ+ flags and any LGBTQ+ curriculum in schools. This prompted a massive backlash from the leftists that had helped elect them, but the ban still stands today.
This Guardian article gives a good explanation of what happened:
https://www.theguardian.com/us-news/2023/jun/17/hamtramck-michigan-muslim-council-lgbtq-pride-flags-banned#:~:text=2%20years%20old-,'A%20sense%20of%20betrayal':%20liberal%20dismay%20as%20Muslim%2D,to%20celebrate%20the%20LGBTQ+%20community.
There are also examples in the UK of Islamist intolerance of sex education which includes LGBTQ+ teaching in the UK.
https://manchestermill.co.uk/the-battle-at-birchfields-sex-relationships/