Not really, no. The Clans have a caste system just like the Cappies and Dracs, and go a step farther with their eugenically-arranged marriages; the Bears are the only Clan we know of that actually stopped that practice. The Clans are also all basically rule by military junta and are quick to clamp down on internal dissent, though to be fair, the Bears and Scorpions have given their civilians oversight of their toumans.
The Ravens flat-out rule over the Outworlders as their overlords (and let's not forget, also wiped out billions of people on Galedon over bad intelligence), the Horses don't deal with their occupied population at all (much to their detriment as we're learning), the Bears just had a complete and total failure of governance, the Scorpions got pleeeeeeenty of civilian blood on their hands during their conquest of Nueva Castile (especially the Umayyads), and as far as we know, anyone who's not a warrior or a merchant in the Foxes only has a life of supporting the massive Fox export industry to look forward to.
I'm not saying that the Combine and the CapCon aren't bastions of human rights violations for centuries themselves, because they certainly are. I'm just saying that the Clans have plenty of overlap with them both, to varying degrees.
We know that eugenically arranged marriages have amounted to simply rubber stamping marriage permits pretty much since Nikky K suffered unfortunate X-ray machine accident (hell, maybe even before?)
Galadeon was a colossal screw up but everything else you listed have been steps in the process, and that process is something Kuritans and Cappies simply don't have
And even with all that stuff those Clans still end up looking better in comparison while still working on themselves (more about motives below)
We know for example that enough Outworlders apply to join the Clan each year that Raven Alliance has established administrative procedures for that and that they freely allow Clan members to leave the same way
This tells us that things are smoother than they look on the surface
And every single nation in BattleTech is a military dictatorship, this is a rule not an exception
DISCLAIMER JUST IN CASE BECAUSE INTERNET: I'm talking about stuff in universe, nothing from BattleTech should fly in real life and stuff that does fly is obviously bad and shouldn't be happening
Because it's not hero origin story material, LOL. Gottfried Amirault let another Clan Khan punk him into joining her genocidal campaign, and that was after Malvina murdered his Blood-kinsman and stole his Galaxy. As a result, another Galaxy ended up as collateral damage during an orbital bombardment, and the Horses got exactly nothing out of their participation in the Golden Ordun. The Horses themselves, in canon, view that entire affair exactly like this, and it was just one of many, many poor decisions Gottfried Amirault was responsible for during his reign.
But it doesn't change the fact that they went ahead and prevented that famine
Even with all the mess afterwards that simple fact still remains
And when screw ups happened they didn't go and blame people whom they saved from famine for it, they correctly looked for the source of the problem in-house
No matter how clumsily it's done it's done nonetheless
Ask good people of Csesztreg both Spheroids and Clan if they would prefer to have Kuritans or Cappies come and run the show and the answer you would get would be unanimous: "HELL NO!!! WHAT THE HELL IS YOUR PROBLEM, MAN? ARE YOU FREAKING CRAZY?!?!??!"
That's fair, but as the saying goes, if it ain't broke...
The Clans that changed did so because circumstances humbled them and they were forced to change. They didn't do it out of some sense of altruism, not even the Bears. The Clans were forced to adapt to life outside of the Kerensky Cluster/Pentagon and everything that resulted from the invasion of the Inner Sphere to the Jihad to the Wars of Reaving to the Dark Age... and not all of them were able to do so.
I can't really speak on the Combine, but the CapCon certainly showed the ability to change for the better with the Xin Sheng reforms, especially with the abolishment of Servitor slavery and giving them an easier path to citizenship.
Nations rarely change out of altruism and in majority of the cases it's out of necessity
This isn't BattleTech issue, it's simply art imitating life
But those Clans did change, while Kuritans and Capelans remained fully convinced of their perfection and infallibility (mountains of corpses throughout centuries be damned) those Clans went ahead and changed
Regardless of how they did it and how they explained it to others and themselves they simply did it
You say that like the Dominion wouldn't exterminate the Nova Cats themselves if they'd been able to do so (and even participated a bit at the tail end of the Nova Cats' destruction). Let's not act like they're above doing what the Combine did.
Dominion would have done it
But it was still Draconis Combine who actually did it in the end (funny how it keeps happening to them)
And they did it far more horrifically than anyone could have imagined. Dominion (and even Kuritans who did Kentares) would at least opt for doing it quickly
Instead every single Nova Cat man, woman and child were sterilized and sent to die in slavery
Do we really need to go into specifics of why someone would want a sterilized child slave or why would they create one in the first place?
There is evil and then there is sick evil
