If by "conservative/right wing opinions" you mean the current extremist fascist opinionated MAGA-'my way or the highway' brand of Republicanism, then I sure as hell hope it's unwelcome on Lemmy instances.
If you wish to bring back reason and logic into conservative/right-wing opinions (such as limited government, which means NOT legislating their brand of morality), then I'm all for those viewpoints (not that I would agree with them wholesale, but it's a discussion I'd be willing to take part in).
The real problem with this discourse is that current climate of conservatism is completely closed to reason and logic, completely embraces lies and conspiracy theories as factual, and basically wishes to see all liberals either dead or suffering in some way.
So yeah, keep that shit off Lemmy instances.