He gave up his own life trying to fight an unwinnable war against genocidal colonising europeans who had taken over his motherland, forced his people into barely habitable camps, and crushed their souls in a decades-long campaign of violence.
There's nothing beautiful about it. It's all ugly.
Now back to reality. They waited to suicide bomb themselves near the maximum available innocent bystanders, to kill as much people. while their leaders hide in their mansions.
They are the scum of the earth. And thankfully, Israel stopped them.
[1] "...The group [Lehi] referred to its members as terrorists and admitted to having carried out terrorist attacks."
[2] "... The Irgun has been viewed as a terrorist organization ... , In particular, the Irgun was described as a terrorist organization by ... the 1946 Zionist Congress and the Jewish Agency"
Seems like everyone agreed they are terrorists... But, even then:
[2] " However, Bruce Hoffman and Max Abrahms [claims] ... the Irgun went to considerable lengths to avoid harming civilians, such as issuing pre-attack warnings;"
So turns out it very easy to separate terrorist from freedom fighter. Just see if civilians are one of their targets. Multiple suicide bombing in public buses in the past and Rockets on civilians [3] in the present tells us all the story we need about the org that sent them. (See the "Motives" section in [3])
2) "sacrificing his own life" what a poetic gesture ... never thought of a terrorist bomb suiciding as such a beautiful act.