Ni vizuri kukabiliana na utawala kandamizi kwa umoja, badala ya kuuruhusu utudhibiti.

A helpful literal breakdown is:

• Ni vizuri = it is good / it is better
• kukabiliana na = to confront / to deal with
• utawala kandamizi = oppressive rule / an oppressive regime
• kwa umoja = in unity / united
• badala ya = instead of / rather than
• kuuruhusu = to allow it
• utudhibiti = it-us-control

So the structure is basically:

It is better to confront oppressive rule in unity, rather than allow it to control us.

Vizuri can mean well, good, or nicely, depending on context. In the expression ni vizuri, it often means:

• it is good
• it is advisable
• it is better

Here, because the sentence contrasts one choice with another using badala ya (instead of), English naturally prefers it is better.

So:

• Ni vizuri kufanya hivyo = It is good to do that / It is better to do that

Kukabiliana na is a common expression meaning:

• to confront
• to face
• to deal with

The na is part of how this verb is normally used. In other words, you kukabiliana na something.

Examples:

• kukabiliana na tatizo = to deal with a problem
• kukabiliana na adui = to confront an enemy

So in this sentence:

• kukabiliana na utawala kandamizi = to confront oppressive rule

Also, the ending -ana often appears in verbs with a reciprocal or interactive sense, but in this verb the whole form kabiliana is best learned as a set expression.

Utawala means things like:

• rule
• governance
• regime
• administration

In this sentence, it refers to rule/regime rather than just the abstract idea of governing.

Kandamizi means oppressive, repressive, or tyrannical.

Swahili adjectives usually come after the noun, so:

• utawala kandamizi = oppressive rule
• literally: rule oppressive

That word order is normal in Swahili.

Umoja means unity. With kwa, the phrase becomes:

• kwa umoja = with unity
• more naturally in English: in unity or united

The preposition kwa often gives the sense of by means of, with, or in a certain manner.

So this part means that the confrontation should happen:

• collectively
• in solidarity
• as one

Badala ya is a fixed expression meaning:

• instead of
• rather than
• in place of

It can be followed by a noun or by an infinitive.

Here it is followed by an infinitive:

• badala ya kuuruhusu... = instead of allowing it...

Some examples:

• badala ya chai = instead of tea
• badala ya kwenda = instead of going

So in your sentence, badala ya introduces the less desirable alternative.

Because it contains two separate parts that happen to meet:

• ku- = the infinitive marker, to
• -u- = the object marker, it
• ruhusu = allow / permit

So:

• ku + u + ruhusu → kuuruhusu

The -u- refers back to utawala. So kuuruhusu means:

• to allow it

The double u is not a typo; it shows that both parts are really there.

Utudhibiti can be broken into:

• u- = it (the subject marker, referring to utawala)
• tu- = us (the object marker)
• dhibiti = control

So the whole word means:

• it controls us
• or in this context, it control us / it to control us, as part of allowing it to control us

Swahili often packs subject and object information directly into the verb, where English would use separate words.

Because utudhibiti tells you who is doing the action.

Compare:

• kutudhibiti = to control us

  • this is just an infinitive
  • it does not say who is doing the controlling

• utudhibiti = it controls us

  • this includes the subject u- = it

That matters here because the sentence is talking about allowing oppressive rule to do something. Swahili makes that clear by using a verb form that includes the subject marker:

• u- = it
• tu- = us

So the sentence specifically means allowing it to control us, not just allowing control of us in a vague way.