Yes, Marx makes it clear what's wrong with Capitalism, why it cannot last forever, provides a philosophical framework for viewing any problem, conflict, or struggle, and shows how to move beyond our present dystopian state.
Jumping straight into Capital is like going spelunking with no tools or training, it's Marx's masterwork but it's dense and complicated for those not versed in Marxism already, and it isn't targetting the average person, but economists and scholars. That's not to say you should never read it, just hold off, for now.
Marx did write for the common worker in several texts. Wage Labor and Capital and Value, Price and Profit are short and concise works on Marx's critique of Capitalism. After that, I'd wrap around to Engels again for Socialism: Utopian and Scientific to understand the history of Socialist efforts and how Marxism solves the problems they have faced, and touches on Dialectical Materialism, the philosophical framework of Marxism. Add on Critique of the Gotha Programme to see Marx critique a weak Socialist program and advocate for a better method, then swing over to Manifesto of the Communist Party to tie everything by Marx and Engels together and spur revolutionary fervor.
Finally, I would make sure to read Imperialism, the Highest Stage of Capitalism by Lenin. This does not really get into Marxism-Leninism, this is Lenin as a Marxist examining how Capitalism has changed over time to exploit the global south via exporting machinery and predatory global bank loans, absolutely critical for understanding modern Capitalism. If you want to get into Marxism-Leninism, add on The State and Revolution by Lenin as well, but you do not need to at this point.
We are in the Age of Imperialism, specifically its decay. Over time, the global south is becoming increasingly revolutionary and are throwing off the IMF and the US. Eventually this will destabilize the US, the world's current largest Imperialist power, and give rise to the possibility of a Socialist movement within the US as commodities become more expensive and Material Conditions weaken. This will be due to a decreasing subsidization of cost of living in the US off the labor of workers in the Global South.
Not until vast portions of the global economy fail and the residents of the 1st world start feeling the hunger and hardships the 3rd world has been feeling for a long time
In a lot of cases revolutions get started by one thing: hunger. People will mostly be to scared to lose what they have, even if it’s little, but hungry (real hunger, not just “I’m hungry, let’s eat”) people won’t care, because they have nothing to lose.