At what arbitrary point would you like to start counting as to where we should start respecting this "consent"? Do you want to undo any previous actions or should we just take whatever arbitrary power structures we've landed on and start? C'mon, this is ridiculous.
We live in a society which, by definition, requires multiple people participating. Your right to consent (or not) sometimes doesn't exist because society takes priority. There is no high philosophy here, it's just the reality of how things work. Get over it.
> At what arbitrary point would you like to start counting
There is no need to keep count. We are all born into this world with no possessions, and we all negotiate with those already here for everything we come to own. It is true that people and circumstances vary widely, but that doesn't provide legitimacy for one person's claim over another (equal) person's legitimate good fortune.
> We live in a society which, by definition, requires multiple people participating
It is exactly the nature of this participation which I am litigating. I hold that it should be maximally voluntary and consensual. The only justified violation of fundamental liberty is in defense of liberty itself. Drafting people into the army (effectively enslaving them) is justified in direct defense of the nation (not to attack eg. Vietnam). Redistributing legitimate (earned through consensual exchange) wealth by force simply doesn't pass this test.
> There is no high philosophy here, it's just the reality of how things work. Get over it.
Funnily enough this is the exact sort of reasoning has been used to rationalize the most horrific atrocities ever perpetrated.