Christians think gay people try to spread gayness because Christians try to spread Christianity. It's projection.
That's why they project indoctrinating your kids, teaching it in school, having a gay country, having gay agenda, because that's what they want to do with Christianity.
Many are bi, so for them it's a choice on whether or not to act on it. So they project that it's a choice for everyone. And the gays are choosing it because they're lustful or sinful or weak or whatever.
The door to door is for brainwashing. They are sent out to get used to rejection from anyone that isn't already part of the cult and it becomes deeply rooted belief that nobody else cares about them etc. Anyone that actually joins(yeah right) is bonus.
And the gay people that are being included are just sort of token characters, scenes, or facets of a character that can easily be removed if another country finds them objectionable. They're like "Pride Month" characters just there to show "We're being inclusive, see?!"
MEANWHILE, Christians have to make whole fucking movies about their faith. You can't just have a character who also happens to be Christian and tries to be a good person, nope, it's got to be Christ-man, the avenging Christian super-hero who worships our Lord and Savior, Jesus Christ.