There are a few things to consider:
The average lifespan of an empire is 250 years
That the situation has always been desperate and hopeless, perhaps moreso in periods of history than it is today. We can look to the battle of Stalingrad or the Long March or the period around the October Revolution as examples of just how desperate things have been and how we have been able to prevail against all odds. Heck, Lenin didn't expect to see the revolution in his lifetime and then in a few short years he ended up leading it.
I'm not going to go into depth on this because I don't have the focus rn but ultimately this is a question of having a world to win and daring to invent the future. We have two propositions:
- We are in a hopeless situation with no potential for achieving revolution
- We are in a situation which has potential for achieving a revolution
The importance of revolutionary optimism cannot be overstated. (There are some good video essays out there on this topic.)
Ultimately, the choice is between an attitude of defeatism or revolutionary optimism. If we choose defeatism then we foreclose on the potential for revolution because, if an opportunity for revolution exists, we will not be in a position to seize it.
If we choose revolutionary optimism, on the other hand, we have the ability to seize the opportunity.
We cannot allow ourselves to foreclose on the opportunity for revolution because we will only ever know if something is possible by striving for it and, in achieving it, proving that it is in fact possible retrospectively.