You can't make meaningful political change by arguing with people online and sharing memes (though I'm not against doing those things).
Relegating your activity online is exactly what our enemies want us to do.
Do you think the fascists are only online?
No!
The fascists are outside recruiting people into their groups and organizing community events to spread their beliefs and recruit more people, and if we want to beat them, we have to do the same.
You have to go outside and organize!