Perhaps you'd find passion in pursuing a PhD (or other avenue of professional R&/D) that focuses on resolving the fundamental issues with much of software development methodology, endpoint arch, and networking.
Barring that, the MO is to devise more robust bandaids.
The proprietary and secret nature of big tech security creates a playing field of fortified castles vs. self reliant survival in the wilderness. Tail end participants such as Google's core infra security will outmatch any independent actor. And, still, both google and apple consumer endpoints seem to have fundamental security flaws, entrenched due to being built on many billions in investment over decades.
Something like CHERI may take decades to bear fruit, hopefully turning over and pruning any insecure legacy systems sooner rather than later. Telecom is an example of why this will likely never occur anytime soon, and that we may be stuck with current security paradigms for many, many decades.