"...if I feel..." What you 'feel' has got jack to do with it, legally speaking. The reasonable man test doesn't apply to your feelings. As others have said, some people 'feel threatened' when a person of another color walks up to them, or when a neighbor plays his music too loud. How you 'feel' is not sufficient. If a 'reasonable man' would agre that they would feel that they were in immanent danger of being assaulted, then yes.
I'm not pulling your statements apart for fun. The difference between how someone making you feel threatened and you actually being threatened based on the 'reasonable man' test can be immense, depending on many things, including what it takes to make you feel threatened.
You also said "then I will take whatever consequences," which to me implies that you are well aware you may be breaking the law, but do not care. If you are within your rights to defend yourself, there should ideally be no consequences for you.
And then you said "Nothing wrong with a preemptive strike" as an absolute. Of course there is. There are all kinds of things wrong with preemptive strikes, depending on the context. In the proper context of legal self-defense, a preemptive strike is actually not preemptive in any case; legitimate fear of immediate assault by another is under most legal definitions, assault. You have already been assaulted, your strike is not preemptive but one of self-defense against that assault.
Why am I picking at you? Because your statements, taken as a whole, come across as a cocky chip-on-the-shoulder type of wideboy who is not particularly interested in the rule of law, but who will cheerfully have a go at anyone whom he 'feels' is a threat, regardless of whether or not the law would agree.
While your definition of threat might actually be the same as mine, in which case you'd be within your rights to defend yourself, the way you say it implies otherwise, to me.