And, we don't?
Ukraine is a dictatorship. Saudi Arabia is a dictatorship.
How many of our politicians, like Tim Walz and Eric Swalwell, have been in bed with China and Chinese spies? How much of our manufacturing is China doing?
We've worked with Islamic terrorists like those that formed ISIS.
There are considerable differences between admittedly flawed democracies that become wartime dictatorships (Ukraine) and innate autocracies and dictatorships (Russia under Putin; and Saudi Arabia in general).
Further distinctions are whether such regimes are defensive or status quo in their foreign and security policies (Ukraine and Saudi Arabia) or aggressive and revisionist (Russia under Putin and Iran under the mullahs), and whether dealings with terrorists and bad actors are rare and driven by circumstances (the US) or if they are a routine part of national policy (Russia for many decades and Iran under the mullahs).
I do not mind that you take shots at Swalwell and Walz or China manufacturing, but those are just opportunistic diversions, are they not? I struggle to see any relevance to the discussion.