Again, try looking at cause and effect.
Cause and effect would depend on when you want to start looking at this problem.
I look at it from the time of the Shah and I believe that set the stage for the current hostilities.
So I blame the US for it.
But we do not have to do all that.
Regardless of the why, you admit that there have been attacks on Iran.
You can justify those attacks any way you want to.
But they are attacks.
We do not have to agree on who started what.
We do not have to agree on who is right or wrong.
We do not need agreement on these things because these are matters of perspectives and they differ on both sides.
We can however agree that if Iran is considered a national security threat to Israel and the US, then by the same measure both countries are national security threats for Iran.
That would justify Iran developing nukes to protect itself.
The fact that the US and Israel are many times more powerful than Iran, legitimately makes this a bigger existential crisis for Iran than the other way around.