Stoicism isn't being without emotions. Definitionally, stoicism is when you understand that there are things that you can change and things that you cannot change and you choose to focus on the things you can change rather than despairing.
We have a lot of people today who think that the only way to make the world a better place is by effectively taking over the world like a super villain. A few more stoic fathers and we might see those same people passionately acting locally in ways where they can actually change the world.
One caveat: this doesn't and has never meant "don't do hard things". What it means is that you can make the most impact right where you are, and focusing on a distant capitol you have little effect over (or worse, another countries capitol you have no effect over) when there's things to be done in front of you is a recipe for despair.