Guys like that are way too common, especially online, these days.
I'm all for people having the freedom to live without a religion or spiritual faith, but in some communities the fight for that freedom just overshoots into "bash, shame and eliminate all religions and people belonging to them whenever possible".
Wonder when these people are gonna wake up, smell the coffee and realize they have become what they hate.
Srsly tho I have been in/situations where like... Someone's grandma died. Someone else tells that person that she's in heaven now, in an attempt to soothe the pain. The person is christian so they say thank you. Everyone is happy.
Until one random douchebag decides their opinion is NEEDED to fix this situation, and goes "Your grandma rots in the earth and you will never see her again. Fucking deal with it."
Like thanks dude. You surely are fighting for what's good!