Don’t want to be ostracized because your user is registered on the wrong politic instance ? Join biggest instance instead.
There are plenty of politically neutral instance. Most of them are, actually, the only ones that come to mind as politically oriented are hexbear, lemmygrad and to an extend, lemmy.ml.
That leaves lemm.ee, sh.itjust.works, all the feddit.country, discuss.tchncs.de, sopuli.xyz, reddthat.com, lemmy.zip as neutral alternatives