"2) claiming you had it back in March doesn't mean you are immune to it now. (and the people have had it multiple times shows you that even when you do have it, you can still get it again)."
Why did you use the word "claiming"? A person either had it or they didn't. Claiming anything has zero scientific influence regarding immunity. When a person uses that word in that context, it shows utter contempt for what science actually is (or perhaps severe grammatical deficiencies?) because anyone actually claiming to know anything about science would not speak in such an incredibly inaccurate (or at best, vague) way. So I guess it's not surprising to see it used in response here.
Anyone who knows anything about science would know that natural immunity (which your point #2 clearly attacks, purportedly on a scientific basis, ha!) is "a thing", and is better than a vaccine which its proponents had said it would immunize people, but then when it didn't, had its narrative changed by those proponents (i.e. Fauci) to claim that it only made the symptoms less severe. No "vaccine" in history has been so incredibly ineffective and had such severe side effects. Wake up.