I suspect you may be right. The Democrats can't seem to find the same songbook, much less the same song sheet. In contrast, the GOP looks like the Mormon Tabernacle Choir, in comparison. But, the reason they look so unified is that they are all petrified of Trump. Go against him and find yourself being primaried? Best to throw your dignity out the window and toe the line, if you want a chance at keeping your seat. Remember before Trump won the GOP presidential candidacy? You could hardly find a GOP member who had a good thing to say about him. Now, it's the complete opposite. I have to give him credit - if hanging onto power is his only raison d'être, he's doing a masterful job. Unless the Democrats can get their poop in a group and produce an electable candidate, Trump will be a 2-term president. Unless, of course, he intends to pull a Putin...
Though the Trump tenure is a new extent of that, it's been the case for some time.
Firstly though, let's not confuse conservativism and liberalism with the parties that support it. The virtues and vices of a theory are not defined by the advocates of that theory.
The DNC is a party of people each working for their own set of goals.
The RNC is a party of people each working to maintain personal power by maintaining party control of the mechanisms of democracy.
The DNC runs the gambit of personalities.
The RNC lacks practically any people of honest conviction (at least at the national level).
I can prove that the above is true (or the inverse is true) with the impeachment vote.
There's 0% chance that 100% of republicans (save 1) honestly believed there were no grounds for conviction while 100% of democrats honestly believed there was. So some members of at least one party broke oaths to either topple someone they just didn't like, or to preserve party power and protect their own neck.
I can certainly make the case that it's the RNC.
I want to quote this part a second time.
"Unless the Democrats can get their poop in a group and produce an electable candidate"
From 1992 to present: the DNC has lost exactly 1 popular vote (2004) for president.
Congress (including at state level) has the deck stacked from gerrymandering. The courts have the deck stacked from a RNC congress refusing to even vote on appointees until their guy was in office. The entire thing is corrupted by decades of voter suppression and now foreign interference in elections.
