There is a feeling of "joy", but in a way that digs you under, and only grants more misery that looks more and more like joy the deeper you go.
I almost fell into the gamergate hole pre-transition when I was younger, stupider, naive, sheltered under a conservative household and environment, and was feeling lost and alone straight out of high-school with absolutely zero guidance that would actually help me, with my only solace being gaming and online gaming spaces. It only made me feel worse and I didn't realize it until I got out after making friends in progressive gaming spaces with progressives and minorities. Thankfully, I didn't go that far in, but the effects were already deep and it took me getting to know the people I was supposed to hate, and realizing they were the better people and that their beliefs and ideals made much more sense, for them to pull me out of the spiral and heal from it.
People in those right-wing spirals may think they feel joy and have found community, but their hate is poison to themselves and everyone around them. Joanne is absolutely 100% miserable while convincing herself she's not, or else she wouldn't focus so much on hatred and never doing anything fulfilling with her life since going down the transphobia spiral.