You're not weak for finding out what your limitations are, comrade. Everyone is different and have their own tolerances and limitations. Being vulnerable to yourself and acknowledging that is not weakness. And while yes, the Palestinians have it way rougher right now, having to do anything they can to survive an ongoing genocide, that does not mean your own difficulties and limitations are not important too, you probably live worlds apart from them and your life is also going on.
I think the best course of action would be to try to hold on a little longer there and at the same time try to contact a mental health professional. That way you could still try to be in your current job a little longer to see how things go while also seeking the help you need right now.
And like another comrade already told you, if the place is so toxic and you're the only counter to that, your presence there matters a lot. You don't need to be confrontational of them, as that can create animosity between you and the other workers, but being able to listen, assert your position and stand your ground when needed, could be the change they need to be able to pierce the veil of ideology they are clearly immersed in.
I heard something similar before, but I think it's less him being "pathetic" and more the fact that Shinji is a vulnerable male protagonist, and that clearly upsets the cis hetero dudes that comprise such a big part of the anime watchers worldwide. Shinji breaks quite a few expectations of male protags and so he becomes an easy target.
I 100% agree that it is odd, but it makes sense, it's just pure ideology. Coming of age stories about these powerful hero individuals that through their own hard work and merit are able to achieve anything they want and save the world are perfect for maintaining the grip of liberal ideology in the imaginary of the young people that are gonna watch these shows.
That's why I think shows like Dungeon Meshi are important and so refreshing. It shows a group of people that all matters and have to work together to achieve their objective. It's a story where it's clear from the get go that everyone in the group is unique, important and have their own role to fill. It's truly amazing. I could say the same of Gurren Lagann to, to some extent, tho that does have a more clear cut protagonist.