No. If I agree upon something, I am not being stolen, that's that simple. If you come to my house and take my car without my consent, it's theft. If I agree you take it it's not.

no, precisely because i am willing to loose some of it in exchange for better privacy. Had it been without my consent, then it would be theft.

I actually see tail emissions as an ever decreasing percent fee on increased security provided by every extra block. A fee for a service. As it is, miner funding in the future is somewhat fragile, and hodlers get something for nothing. I also understand that opening this pandora box is risky. But I see most arguments against tail emissions to come from a kind of (justifiable) revolted place against fiat and central bank policy.