Why do people call Christians homophobic when it's the Islamic countries who execute homosexuals? [Spirituality & Religion]

I have nothing against people of either religion, so don't take offence. I know people who are in both of these religions and they are very nice, it just kinda rubs me off when people are always making posts of how homophobic Christians are yet there are others who kill homosexuals for what they are.

Also don't start arguments or religious debates in the answers please, thanks