Quote from phenomena:
First of all, there was no force used until the Israelis were attacked with lead pipes and knives. Second, it really makes you look like a desperate crackpot to compare ship boarding to sexual rape. You're a bright guy, you should know that makes you look really stupid.
When a person(s) enters onto sovereign property without the consent of the owner, that constitutes force.
If you, when driving in your car, watch some teenager open your passenger door, GET IN, and brandish a firearm, you have a right to defend yourself and property.
The point, which you missed, is the preceding ships refusal to exercise their right to self-defense in the face of a hostile boarding party did not diminish the last ships right to exercise self-defense in the face of the same hostile, boarding party.
If the ship had been in Israeli territorial waters, then there's no argument. But since it's international waters, Israel has no jurisdiction, which constitutes an illegal act, which is why it's considered hostile, besides the obvious.