You literally do not know what you are up against nor, by your own profession of vagueness and refusal to embrace a militant ideology, do you know what you need to do to combat it. You have some words for things, but those words stand-in for vast systems that need to be studied to be properly opposed, rather than taking the route of (for example) the utopian socialists and saying that all that we see in society is wrong and we shall birth a new world entirely by our own reason, ignoring how our reason is truncated by the existing system or how material reality constrains what is achievable at any point in time, to say nothing of the mechanisms of actually instituting whatever utopia it is. The value of Marxist analysis is having a framework for specifically answering these questions that utopians failed to.
Additionally, if you don't do investigation on your own and think critically about these matters, then you can just be taken in by any sophist who says radical-sounding horseshit. This idea of waiting in epistemic suspense, "vagueness" as you call it, is a misbegotten attempt at epistemic humility. You don't develop an understanding by just sort of accepting a bunch of contradictory things and saying "so true, bestie," you develop an understanding by putting forward specific theories and testing them, and refining from your best available understanding. You don't just shrug, you take a specific position and accept that it will probably need to change with new information.