It's a construct, just like when Billy uses Jews to try and hamfistedly prove some SJW point. Just turn people into tools to prove his dogma; toss away any real people who belong to those groups if they disagree.
Of relevance to the hijab thing, I was at my hairdresser today who is from Iran. She emigrated to Germany and then America about 20 years ago, holds no love for the Iranian government, and despises the morality laws they force down Persians' throats. She was literally just talking to me today about Iran forcing women into hijabs under extreme penalty—up to and including public execution (by hanging). Yet in Billy's estrogen-riddled mind, her lived experience as a "Muslim" woman (I don't get the sense she cares that much about religion, but we'll call her a Persian Muslim in terms of culture and upbringing) and the repressed group of women she can represent by living in a free country and speaking/expressing herself without risk is entirely dismissible because it doesn't jive with SJW dogma. Billy is literally a colonialist.
And a pedophilic furry, but we already knew that from the minute he created a comic about the genitals of a little boy.