The Problem with your line of thinking is that these factions are the real threat according to you. They are NOT. Abeloth, yuuzhan vong, Reborn/cloned Palpatine, Darth Krayt and many others to come. All these petty Empires and the New Republic are mere children compared to them. So stop worrying too much about them. We need to be focused on the long term not short term.
Edit. Especially since we own their intelligence agencies. Who is going to tell them about us things that we don't want known/will leak to stir the pot? Political favor, readying ourselves for a slugfest and gaining a force order worth a damn are the primary concerns we NEED to have. All that on top of getting a functioning Economy started.
So no i do not want to waste resources sheltering this Bantha poodoo under house arrest as well as his 'projects' when we have bigger concerns on the horizon.
If you need help understanding the Osik to come from Sith please take a look at the following.:
starwarstimelinealmanac.com
As if that wasn't enough, for all the people here who know warhammer 40k more than Star Wars Legends, the Yuuzhan Vong are an unholy hybrid of the Necrontyr and the Tyranids. Hell i would argue that they inspired them both! First mention of the Vong is in a book from 1987. First mention of the Necrontyr and Tyranids is in 1996.
Better yet? According to the Star Wars Legends Timeline they invade in the year 25ABY. However their scouts accordingly have been observing everyone since 5BBY. So in essence, we need to hurry the %$@& up in our prep for their arrival.
The Yuuzhan Vong War, also known as the Great War, was the campaign of conquest and terror that ravaged the galaxy by the Yuuzhan Vong, a nomadic warlike species which had long ago fled the destruction of its own galaxy, invaded the galaxy. After several decades of preparations, scouting and...
starwars.fandom.com
By the end of the Canonical war over 90% of the Galaxy was SLAUGHTERED! We need to focus more on their arrival than some petty warlords. The warlords are ultimately irrelevant in the scheme of things to come. Hell if anything they are fodder for the Vong.