“who say they’re conservatives”
There’s your key. They are merely keyboard ideologues, and they consider anyone who doesn’t meet their ridiculous standards as “Rinos.” They couldn’t get elected dogcatcher anywhere with their rigid ideologies.
"RINO" tops my list of political buzzwords that ought to be retired because they're completely devoid of meaning. RINO on FR basically means "anyone who says they're a Republican but disagrees with me or with my favorite candidate". Not very informative, if you ask me.