Is the triumph of good inevitable?

Since the triumph of any specific person in this-world is obviously Not inevitable, "the triumph of good" is asserted for groups, not individuals... 

The assertion is that "my" tribe, nation, religion, ideology Will Win (in the end) is meant to compensate for the risk/ probability that I personally will not be around to see it.

The idea is that our "real" identity lies in the group, that we are primarily "members" of a greater and realer unity; and we ought therefore to think of ourselves as expendable servants to that group interest.

Bit is this true? Is it not, rather, primarily the case that each Christian is an unique child of God with his own relationship with the divine... His own destiny?

We Cannot believe that God operates at the level of tribes, nations etc - not least because here and now these are all corrupted, all on the side of evil, all aligned with totalitarianism.

But also we simply cannot - ie do not in fact - believe this as of 2025.

A supposed future triumph of "our" group is experienced to be of secondary relevance. We ask: Don't I personally matter to God, here and now?

The answer is yes, but Not in terms of optimizing our emotional state: God's ultimate priorities are eternal, not temporary and palliative. 

Since all things are ephemeral, and death is the terminus; it cannot be God's first priority to  make us as happy as possible now, or minimize our suffering. 

So; if not, then what? 

What matters most about each of us to God, is the eternal. God wants us to choose to follow Jesus to eternal resurrected life in Heaven ("salvation"), and our current situation needs to be related to that goal - otherwise it does not make sense.

Once we have accepted and embraced salvation, this provides the proper context from which we may spiritually-learn from our actual experiences...

This is what matters most to God, and we can choose to.make it matter most for ourselves.

So yes, the triumph of good is indeed inevitable, and that is our own personal good - not merely the good of some group. 

That good is inevitable insofar as we choose it: it must be chosen, and if chosen it will happen.

Because this good really is inevitable for us personally and without regard to other people and circumstances; it necessarily applies only to life after mortal death, and only for those who have chosen it.

Think about it.