All of the above problems are based on capitalism - a system based on private property and the exploitation of man by man. The ongoing pursuit of enrichment, the exploitation of the working class and natural resources has put modern society on the brink of survival.
The "hypertrophy" of capitalism, which led to imperialism, became the reason for the regularly occurring economic crises. The latter, in turn, lead to military conflicts and attempts by individual states and alliances to "reshape" the sphere of influence. But that's not all.
The most acute problem of the existing system today is overproduction, which, again, is the result of an uncontrolled pursuit of enrichment. All this ultimately leads to the closure of "uncompetitive" enterprises, job cuts and, as a result, to further impoverishment of the working class.
Add to the above: deforestation, pollution of water bodies, irrational mining and the disappearance of entire species of flora and fauna.
However, fortunately, capitalism, like feudalism, is only a stage in the development of mankind. And now, inside the decaying parasitic system, prerequisites are being created for a gradual turn towards the socialist mode of production and the new socio-economic formation - communism.