They can't of course - what views/beliefs does Musk have that make him particularly right-wing or even "far right" as at least one person seems to believe?
So far it seems the worst things he's been accused of are responding to people who are "bad", telling people he's an independent but has voted democrat until now but with a democrat president he'd like independents to vote Republican and being anti woke nonsense.
As far as US politics is concerned he seems very much to be a moderate/independent, non-woke liberal. If people disagree they could perhaps provide something substantial beyond the usual "Space Karen" "Spaceship man bad" stuff... Or just straight-up personal attacks on him "ackchually his ex-wife* said that she was holding their baby at the precise moment he passed away, not him".
Of course pointing out that lots of the stuff said about him is just hyperbole/nonsense will also get taken to mean you must totally support him in everything. Some people don't see the difference between pointing out he's being a **** at times and just blindly going along with the notion that he's some far-right/full MAGA loon.
*who he's known to have had an acrimonious divorce with. His other exes seem to get along fine with him mind.