I would just ignore the inbox. It has become so cheap to create automated fake accounts that what you see on the internet doesn't reflect reality. On well-funded platforms like Reddit these misinformation bots need to at least act like rational individuals, but claiming to be a far-left liberal is enough for free reign on Lemmy.
It sucks, but the Internet is still adapting to this new technology. I try not to let perceived peer pressure determine anything about me.