When will communism see a resurgence? Leftism is the most dead it's ever been...

It wont if you expect it to magically resurge.

It will with a clear plan and use of technology to make it viable in today's world

When capitalism stops being comfortable for the masses. Within this century, we'll see that kind of crisis.

We also need to guide them if we want to overthrow capitalism. Them being unconfortable alone does not help.

True, which is why places such as this are important. when discomfort comes, we can well and truly ferment a revolution. When their minds are open to the possibility that capitalism is fucking everyone over, is when we make our move.