What does it mean when someone on sw claims that their god is the only god and other people believe in fake gods and they are with satan, they would

It means I mute mostly.

it means an infection of a pernicious mind virus, that takes over the infected and makes them try to spread it further

It means: nothing

To some degree they do

Any human who threatens another with ‘their’ God, is a fruit loop.

Any human who professes they speak on behalf of ‘their’ God, is a double fruit loop.

It means you have a lot to learn.

They have not heard of tolerance