Playing devil's advocate: is the current level of security the biggest problem of the computer systems? Just two (similar) examples that cross my mind: large m

Playing devil's advocate: is the current level of security the biggest problem of the computer systems? Just two (similar) examples that cross my mind: large monopolies (ex: thinking Microsoft in the 90's), imbalanced power between actors (ex: only nations states/huge companies can do something not a small group of hackers). I think diversification and accessibility of the technology would solve more problems overall rather than just focusing on security. It is just hard to strike a balance between efficiency and diversity (ex: one Linux distribution might be efficient resource-wise but it is not diverse; how many and how different would be diverse enough?)