I used to think parasocial relationships were inherently unhealthy, but I don't think that so much any more.
They can be quite comforting, especially when you don't have as much opportunity to build two-way social interactions.
I do think it's important to recognise parasociality for what it is, & not have expectations or entitlement about what the public figure is supposed to do for their audience.
It's also not great when two-way relationships get deprioritised in favour of parasocial ones.