Being "anti-christian" is an issue, because it is always an issue when a society is against a group of people.
One has the right to make fun and criticize religions, but not a large group of people, especially solely based on their traits, be it religion/faith, sexuality, etc.
Islam is quite problematic in this aspect. AFAIK the current resurgence of political Islam stems from its very core. Maybe it could be reformed to be (durably !) compatible with a secular state, but would that reformed religion be still Islam, or would it be as different as Christianity is from Judaism ?
This is somehow fine as these are our official 'state enemies'. It is funny how the problem is when it is turned around.
CoD and BF both went back to WWI/WWII for some releases as well.
And whatever Fortnite and Overwatch’s settings are. Kinda-cartoon kinda sci-fi?
I don’t think there as many generic modern shooters these days.
Doom is kinda sci-fi and kinda killing actual demons from hell ¯\(ツ)/¯