Identity politics and intersectionalism often throw up dichotomies that are hard to resolve.
‘The Left’ support Muslims in western countries because they are seen as a persecuted minority (let’s not get into a debate about defining racism and Muslim).
However, ‘The Left’ also tend to support women’s rights and LGBT rights, which most Muslims are against, certainly the latter.
Now, most western Muslims aren’t actively calling for the stoning to death of homosexuals (although some may privately condone it). So ‘The Left’ say “we support these Muslims, but not those Muslims” and this is where identity politics ties itself in knots.
Having said that, this thread beautifully illustrates how convenient identity politics can be when it supports your position.