The level of general sympathy for one of those (and their level of success) is much higher than for the others
Maybe because they were actively avoiding civilian targets
And even then mostly because a lot of people were supportive of their cause even if they were against their methods
>And even then mostly because a lot of people were supportive of their cause even if they were against their methods
But IRA didn't win because those people supported their cause, IRA won despite those people being against their methods.
It was the force they used which directly led to the GFA, without the bombs and the killing the British would never have surrendered.