[quote=@Silverwind Blade]
<Snipped quote by Letter Bee>

There's a bit of info about that in the OP post, but generally speaking, nonhumans are treated as second-class citizens on all Imperial controlled worlds, with few civil rights and freedoms, and are, by Imperial definitions not even considered 'citizens', as they have no right to vote or participate in civil matters. 
The only kind of work they do is essentially manual labor in poor conditions with minimal safety conditions and working long, gruelling hours. Housing is limited to ghetto-like conditions with minimal comforts and their 'pay' is via a series of 'vouchers' or 'scrip' that can be exchanged for limited goods. Nonhumans are also subject to searches and seizures without provocation or due cause on the whim of any law enforcement or military personnel, and can be taken away with little provocation. Nonhumans regularly disappear, and little is done to investigate their disappearances. 
And that is on 'civilized' worlds with governors who probably believe they are kind and fair. On worlds with less 'caring' governors or personnel enforcing the Imperial Decree, nonhuman citizens may be housed only in shack-like shanty towns, have no access to organised education, computer network services, healthcare and even regular employment. They may be forbidden from meeting in groups, and even subject to regular sweeps for 'dissidents' or other troublemakers that a simply excuses to brutalise people and murder them. 

Political or ideological dissidents that are human are often dealt with harshly. Depending on the nature of their actions, they may be investigated and monitored and then find that a lot of their options in life start to disappear, such as their accounts frozen, career oppotunities drying up, their freedoms to travel becoming limited and other such limitations being forced upon them. 
If their 'problematic' issues persist, or even alongside these measures, their life may become a terrifying, mentally and emotionally draining cycle of random capture and interrogations at any hours or provocation from the Internal Security Forces. 
Those who commit more serious 'violations' of Imperial decree may be 'permanently' disappeared, or even publicly made an example of, with propaganda spinning their deaths as being the elimination of deadly or dangerous terrorists and informants against the Empire.
[/quote]

I see. Hmm, I might make a dissident who joined the Resistance, then. It depends.

Note that I might suddenly find myself without spare time...