Most likely Muslim. Christian and Jews per their religious doctrine go straight to hell for this type of mortal sin. Muslim have an opposite perspective.
Does Islam Teach Muslims to Hate non-Muslims?
The Qurʾān highlights the special place of Christians and Jews by constantly referring to them as “people of the book.” There are many verses in the Qurʾān that highlight the close relationship between Muslims and non-Muslims. And you will certainly find those who say, ‘We are Christians,’ to be the nearest of them in love to the believers. That is because amongst them are savants and monks and because they are not arrogant (Qurʾān 5:83). Additionally, the Qurʾān even prohibits Muslims from insulting the god’s or idols that are worshipped by other religions, Although Muslims obviously disagree with non-Muslims who worship other than God, they are prohibited from insulting or speaking ill of other religious deities. And do not insult those whom they call upon besides Allah (Qurʾān 6:108).
https://www.whyislam.org/does-islam-teach-hatred-and-violence/